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Operational amplifiersPerformance, robust and advanced technology
Content
Introduction ............................................................................... 3
Application schematics ......................................................... 4Home ............................................................................................. 4Automotive ..................................................................................... 5Healthcare ..................................................................................... 6Industry .......................................................................................... 7
Operational amplifiers ............................................................ 8Low power ...................................................................................... 8Precision ....................................................................................... 10Low input bias current .................................................................. 12Low VCC min .................................................................................. 14High output current & capacitive load ......................................... 15Speed .......................................................................................... 16Small packages ........................................................................... 18EMI hardened .............................................................................. 20High temperature ......................................................................... 21Low-power audio amplifiers .......................................................... 22Class AB, Class D & headphone amplifiers ................................... 23Current-sense amplifiers ............................................................... 25
Comparators............................................................................ 26Micropower .................................................................................. 26Speed .......................................................................................... 27Small packages ........................................................................... 28High temperature ......................................................................... 29
Signal conditioning for pyroelectric pasive infrared sensors ................................ 30
Signal conditioning for shock sensors .............................. 31
eDesignSuite ............................................................................ 32
Hardware and software utilities ....................................... 33
ST op amps application ....................................................... 35
3
STMicroelectronics offers a wide analog portfolio including high-performance amplifiers and comparators dedicated to the challenging industrial, automotive and consumer markets.
The product range is developed for various needs such as precision, low consumption, high speed, package form factor, audio and supply range, or cost-optimized bills of material.
The range of products allows easy and fast integration of analog products inside signal conditioning, monitoring and control solutions.
ST’s op amps enhance the signal chain by being the perfect companion chips for microcontrollers and analog sensors.
Introduction
Comparators
Current-sense amp
EMI hardened
Low power
Precision
Low inputbias current
Low Vccmin
Highoutput current
Speed
High temperature
Low-power audio
Automotive
Small packages
4
HOME
Application schematics
KEY PARAMETERS• Precision
• Lowinputbiascurrent
• Lowpower
• Smallpackage
Featured products:
• TSUseries
• TSXseries
• TSV63series
Featured products:
• TSV629series
• TSV5series
Featured products:
• TSUseries
• TSZseries
SmartHome and City
Photodiode current sensing CO detector
+
-
D
C
R
Smoke detector
+
-
D
A
+
-
B
R4C1
R6
R3GND
out
VccR2 R1
R5
Featured products:
• TSUseries
+
-
A
+
-
B
R3
GNDGNDGND
GND
Vref
Out
VCC
DSG R4
C3R1
R2C2C1
C4C5R5
D1
PIR detector
+
-A
+
-B
R3
GND
Vref
VCC
VccR2 C1
VrefRE
CE WER1 Rload
C2
5
AuTOMOTIvE
Featured products:
• TSZ124IYPT
Featured products:
• TSX922IYDT
• TSV912HYDT
KEY PARAMETERS• Precision
• Lowpower
• Speed
• Highvoltage
• Specificproductionflow
Cylinder pressure sensorResistance temperature detector
C2
R10
R11
R9
R12
C1
D+-
R8
R7R6
R5
C+-
RTD
Vref R4 R3
R2R1
A+-
B+
-
Vcc/2
Out
+
-
C1
R1
Piezosensor
Featured products:
• TSX7191IYLT
• TSZ121IYLT
• TSX9291IYLT
Featured products:
• TSX564IYPT
• TSX922IYDT
Current measurementSteering angle sensor
R4
GND
Out
+
-
C1
R1
R3
R2Rshunt
Iload
+
-
R9cos
R10
R11
R3
R12
C6
C5
VrefC2R4Vref
in R5sin
R6
R7 R8
C4
C3
VrefB+
-
R1R2
C1
A
+
-
C
D
+
-
6
HEAlTHCARE
ECG electrocardiography Pulse oximeter sensor
Blood pressure sensor
KEY PARAMETERS• Precision
• Lowinputbiascurrent
• Lowpower
• Smallpackage
R2R1
Out
R6 R7
GND
B+-
A+
-
C+-
R3
R4
R5
GND
Vcc
Featured products:
• TSZseries
Featured products:
• TSV7series
• TSZseries
Featured products:
• TSZseries
• TSV7series
Featured products:
• TSV6series
• TSV7series
Electrode -
Electrode +
R2R1
Out
R6 R7Vref
B+-
A+-
C+-
R3
R4
R5
Glucose meter
Vref2U1
WE
RE
CE
RT
RL
+
-
Vref
U2
+
-
D1TSV731
Vref ADC
+
-
DAC
R1
C1TSZ121
+
-
R2
C2ADCR3
7
InduSTRY
4-20 mA current loop
Force/pressure (strain gauge)
KEY PARAMETERS• Precision
• Lowpower
• Highvoltage
• Smallpackage
R2R1
Out
R6 R7
GND
B+-
A+
-
C+-
R3
R4
R5
GND
Vcc
R2 R3 Q1NPN
4-20currentloop
U1TSB611
A+
-
Vin
R4
R5
R1
LDO
Thermopile+
-
+
-
R2R1
C2
Vref
C1
IndustrySmart
Featured products:
• TSB5series
• TSB6series
• TSX7series
Featured products:
• TSZseries
Featured products:
• TSV7series
• TSX7series
• TSZseries
Potentiometer
+
-
Out
VCC
GND
Potentiometer
Featured products:
• TSV6series
• TSX7series
8
Operational amplifiers
lOw POwERTSu101/2/4: 580 nA 1.5 to 5.5 v rail-to-rail input and output operational amplifiers
TheTSU101,TSU102,andTSU104operationalamplifiersofferanultra-lowpowerconsumptionof580nA(typical)and750nA(maximum)perchannelwhensuppliedby1.8V.Combinedwithasupplyvoltagerangeof1.5to5.5V,thesefeaturesallow
theTSU10seriestobeefficientlysuppliedbyacointypeLithiumbatteryoraregulatedvoltageinlow-powerapplications.Their8kHzgainbandwidthmakethemidealforsensorsignalconditioning,batterysuppliedandportableapplications.
Supply current vs. input common mode voltage
FEATuRES• 580nA(typ.)perchannelat25°CatV
CC=1.8V
• Lowsupplyvoltage:1.5to5.5V
• Rail-to-railinputandoutput
• Gainbandwidthproduct:8kHz(typ.)
• Lowinputbiascurrent:5pA(max.)at25°C
• HightolerancetoESD:2kVHBM
• Industrialtemperaturerange:-40to+85°C
APPlICATIOnS• Ultra-longlifebattery-poweredapplications
• Powermetering
• UVandphotosensors
• Electrochemicalandgassensors
• Pyroelectricpassiveinfrared(PIR)detection
• Batterycurrentsensing
• Medicalinstrumentation
• RFIDreaders
Supply current vs. supply voltage
1.0
0.9
0.8
0.7
0.6
0.5
Supp
ly C
urre
nt (µ
A)
0.4
0.3
0.2
0.1
0.01.5 2.0 2.5
Supply voltage (V)3.0 3.5 4.0 4.5 5.0 5.5
Vicm = Vout = Vcc/2
T = 85 °C T = 25 °C T = -40 °C
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.00.0 0.3 0.6
Input common mode voltage (V)0.9 1.2 1.8 2.4 3.01.5 2.1 2.7 3.3
Vcc = 3.3 V, Vout = Vcc/2
T = 85 °C T = 25 °C T = -40 °C
Supp
ly C
urre
nt (µ
A)
9
Part numberTyp. ICC per
channel (µA)Min. vCC
(v)Max. vCC
(v)Typ. GBP
(MHz)Typ. SR(v/µs)
Max. vIO @ 25 °C (µv)
Typ. IOuT (mA)
Rail to railSingle dual Quad
Automotive gradeIn Out
nanopower (ICC ≤ 1 µA)
TSU101/2/4 0.58 1.5 5.5 0.008 0.003 3000 5 Yes Yes • • •
TSu111* 0.95 1.5 5.5 0.01 0.0035 150 10 Yes Yes •
Micropower (1 µA < ICC ≤ 35 µA)
TS941A/2A/4A 1.2 2.5 10 0.01 0.045 5000 4.5 No Yes • • •
TSV711/2/4 10 1.5 5.5 0.12 0.06 200 45 Yes Yes • • •
TSV611A/2A 10.5 1.5 5.5 0.12 0.04 800 60 Yes Yes • •
TSV6191A/2A 10.5 1.5 5.5 0.45 0.08 800 60 Yes Yes • •
TS27L2/4A 10 3 16 0.1 0.04 5000 60 No No • •
TS931B/2B/4B 20 2.7 10 0.1 0.05 2000 5 No Yes • • • ü
TSV621A/2A/4A 29 1.5 5.5 0.42 0.14 800 69 Yes Yes • • •
TSV6291A/2A/4A 29 1.5 5.5 1.3 0.5 800 69 Yes Yes • • •
TSZ121/2/4 31 1.8 5.5 0.4 0.19 5 17 Yes Yes • • • ü
low power (35 µA < ICC < 1 mA)
TSV521A/2A/4A 45 2.7 5.5 1.15 0.89 600 55 Yes Yes • • • ü
TSX631A/2A/4A* 45 3.3 16 0.2 0.12 500 90 Yes Yes • • • ü
TSV631A/2A/4A 60 1.5 5.5 0.88 0.34 500 69 Yes Yes • • • ü
TSV6391A/2A/4A 60 1.5 5.5 2.4 1.1 500 69 Yes Yes • • •
TSV731/2/4 60 1.5 5.5 0.9 0.35 200 52 Yes Yes • • •
TSB611* 103 2.7 36 0.56 0.18 1000 60 No Yes • ü
TS27M2B/M4 150 3 16 1 0.6 2000 60 No No • •
TS1851/2A/4A 162 1.8 6 0.65 0.25 1000 48 Yes Yes • • •
TL061/2B/4 200 6 36 1 3.5 3000 N/A No No • • •
MC33171/2/4 200 4 44 2.1 2 4500 15 No No • • •
TSX561A/2A/4A* 250 3 16 0.9 1.1 600 90 Yes Yes • • • ü
TSB571/2* 380 4 36 2.5 1 1500 60 Yes Yes • • ü
TS912B/14A 400 2.7 16 1.4 1 2000 70 Yes Yes • • ü
TS1871A/2A/4A 400 1.8 6 1.8 0.6 1000 72 Yes Yes • • • ü
TSV321A/358A/324A 500 2.5 6 1.4 0.6 1000 80 Yes Yes • • • ü
TS512A/14A 500 6 30 3 1.5 500 23 No No • • ü
TS321A 600 3 30 0.8 0.4 2000 40 No No • ü
TSX711A/12* 660 2.7 16 2.7 1.2 100 54 Yes Yes • • ü
TSX7191A/92* 660 2.7 16 8.5 2.4 100 70 Yes Yes • • ü
TSZ181/2* 700 2.2 5.5 3 4 15 17 Yes Yes • • ü
TSV911A/2A/4A 780 2.5 5.5 8 4.5 1500 35 Yes Yes • • • ü
TS507 850 2.7 5.5 1.9 0.6 100 115 Yes Yes • ü
TS9222/9224 900 2.7 12 4 1.3 500 80 Yes Yes • • ü
TS951/2/4 950 2.7 12 3 1 6000 22 Yes Yes • • • ü
Amplifiers with standby pin
TSX920/3* 2800 4 16 10 17.2 4000 62 Yes Yes • •
TSH73 9800 3 12 71 100 10000 55 No Yes 3 channels
TSV620A/3A/5A 29 1.5 5.5 0.42 0.14 800 69 Yes Yes • • •
TSV6290A/3A/5A 29 1.5 5.5 1.3 0.5 800 69 Yes Yes • • •
TSV630A/3A/5A 60 1.5 5.5 0.88 0.34 500 69 Yes Yes • • •
TSV6390A/3A/5A 60 1.5 5.5 2.4 1.1 500 69 Yes Yes • • •
TSV850A/3A/5A 130 2.3 5.5 1.3 0.7 800 56 No Yes • • •
LMV820A/3A/5A 300 2.5 5.5 5.5 1.9 800 56 No Yes • • •
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
10
PRECISIOnTSZ121/2/4: 5 v zero-drift rail-to-rail precision amplifiers (vio ≤ 5 µv)
TheTSZoperationalamplifierseriesofferlow-power,zero-driftoperationalamplifiersinspace-savingpackages.Theyusechopper-stabilizedarchitecturethatprovidesverylowoffsetvoltages(8µV(max.)overthefulloperatingtemperaturerange)and
near-zerodrift.Theseminiature,ultra-precisionandlowquiescentcurrentamplifiersofferhigh-impedanceinputsthathaveacommon-moderangeof100mVbeyondtherailsandrail-to-railoutputsthatswingwithin50mVoftherails.TSZamplifiersareoptimizedforlow-voltageoperationwithsingleordualsuppliesaslowas+1.8V(±0.9V)upto+5.5V(±2.75V).Thechopperarchitecturerejectsthehigh1/fnoisetypicallyfoundinCMOSinputopamps,makingitsuitableforawidevarietyoflow-frequencymeasurementapplications.
Vio temperature co-efficient distribution (25 °C to 125 °C)
FEATuRES• Offset:±1µV(typ.),±8µV(worstcaseintemperature)
• Offsetdrift:10nV/ºC(typ.),30nV/ºC(max.)
• 400kHzGBP
• Low28µA(typ.)quiescentcurrent
• Supplyvoltage:1.8to5.5V
• Extendedtemperaturerange:-40to+125°C
• Rail-to-railinputandoutput
• ESD:4kVHBM
• Qualifiedforautomotiveapplications
• Availableintinypackages:SOT23andDFN8(2x2mm)
APPlICATIOnS• Portableinstrumentation
• Battery-powereddevices
• Mobilecommunications
• Sensorinterfaces
• Medicalinstrumentation
• Electronicscales
• Temperaturemeasurement
Input offset voltage vs. temperature
10
8
6
4
2
0In
put o
ffset
vol
tage
(µV)
-2
-4
-6
-8
-10-40 -20 0
Temperature (°C)20 40 60 80 100 120
Vcc = 5 V, Vicm = 2.5 V
Limit for TSZ121
60
50
40
30
20
10
Popu
latio
n (%
)
0-0.030
-0.0150.000-0.020
-0.005-0.025-0.010
Input offset voltage drift (µV/°C)0.005
0.0100.015
0.0200.025
0.030
T = 25 °C to 125 °CVcc = 5 V,
Vicm = 2.5 V
11
Part numberMax. vIO @ 25 °C
(µv)
Typ. vIO drift
(µv/°C)
Max. lib @ 25 °C
(pA)
Min. vCC
(v)
Max. vCC (v)
Typ. GBP
(MHz)
Typ. SR
(v/µs)
Typ. ICC per channel
(mA)
Typ. 1 kHz noise
(nv/√Hz)
Rail to railSingle dual Quad
Automotive gradeIn Out
low input offset
TSZ121/2/4* 5 0.01 200 1.8 5.5 0.4 0.19 0.031 37 Yes Yes • • • ü
TSZ181/2* 15 0.01 200 2.2 5.5 3 4 0.7 37 Yes Yes • • ü
TSX711A/12* 100 0.8 50 2.7 16 2.7 1.2 0.66 22 Yes Yes • • ü
TS507 100 1 70000 2.7 5.5 1.9 0.6 0.85 12 Yes Yes • ü
TSu111* 150 0.5 5 1.5 5.5 0.01 0.0035 0.00095 240 Yes Yes •
TSV711/2/4 200 3 10 1.5 5.5 0.12 0.06 0.01 100 Yes Yes • • •
TSV731/2/4 200 2 10 1.5 5.5 0.9 0.35 0.06 35 Yes Yes • • •
TSX7191A/2* 100 0.8 50 2.7 16 8.5 2.4 0.66 22 Yes Yes • • ü
TSV631A/2A/4A 500 2 10 1.5 5.5 0.88 0.34 0.06 60 Yes Yes • • • ü
TSV6391A/2A/4A 500 2 10 1.5 5.5 2.4 1.1 0.06 60 Yes Yes • • • ü
TSV630A/3A/5A 500 2 10 1.5 5.5 0.88 0.34 0.06 60 Yes Yes • • • ü
TSV6390A/3A/5A 500 2 10 1.5 5.5 2.4 1.1 0.06 60 Yes Yes • • • ü
TS9222/4 500 2 55000 2.7 12 4 1.3 0.9 9 Yes Yes • • ü
TS512A/4A 500 2 150000 6 30 3 1.5 0.5 8 No No • • ü
TSX561A/2A/4A* 600 2 100 3 16 0.9 1.1 0.25 48 Yes Yes • • • ü
TSX631A/2A/4A* 700 1 100 3.3 16 0.2 0.12 0.045 60 Yes Yes • • • ü
TS9511 800 2 70000 2.7 12 3 1 0.95 25 Yes Yes • ü
TSV611A/2A 800 2 10 1.5 5.5 0.12 0.04 0.0105 105 Yes Yes • •
TSV6191A/2A 800 2 10 1.5 5.5 0.45 0.08 0.0105 105 Yes Yes • •
TSV621A/2A/4A 800 2 10 1.5 5.5 0.42 0.14 0.029 77 Yes Yes • • •
TSV6291A/2A/4A 800 2 10 1.5 5.5 1.3 0.5 0.029 77 Yes Yes • • •
TSV620A/3A/5A 800 2 10 1.5 5.5 0.42 0.14 0.029 77 Yes Yes • • •
TSV6290A/3A/5A 800 2 10 1.5 5.5 1.3 0.5 0.029 77 Yes Yes • • •
TSV521A/2A/4A 600 3 10 2.7 5.5 1.15 0.89 0.045 57 Yes Yes • • • ü
TSV851A/2A/4A 800 1 60000 2.3 5.5 1.3 0.7 0.13 30 No Yes • • • ü
LMV821A/2A/4A 800 1 120000 2.5 5.5 5.5 1.9 0.4 16 No Yes • • • ü
TS522/4 850 2 750000 5 30 15 7 2 4.5 No No • • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
12
lOw InPuT BIAS CuRREnTTSX711/2: 2.7 – 16 v CMOS rail-to-rail 200 µv precision amplifiers
TheTSX71operationalamplifierseriesofferhighprecisionfunctioningwithlowinputoffsetvoltagedowntoamaximumof200µVat25°C.Inaddition,theirrail-to-railinputandoutputfunctionalityallowtheseproductstobeusedonafullrangeof
inputsandoutputswithoutlimitation.Thisisparticularlyusefulforalow-voltagesupplysuchas2.7VthattheTSX71isabletooperatewith.Thus,theTSX71serieshavethesignificantadvantageofofferingalargespanofsupplyvoltages,rangingfrom2.7to16V.LowinputbiascurrentperformancemakestheTSX71perfectwhenusedforsignalconditioninginsensorinterfaceapplications.Inaddition,low-sideandhigh-sidecurrentmeasurementscanbeeasilymadethankstorail-to-railfunctionality,highESDtolerance(4kVHBM)andawidetemperaturerangearealsogoodargumentstousetheTSX71intheautomotivemarketsegment.
Input offset voltage vs. temperature at Vcc = 16 V
FEATuRES• Lowinputoffsetvoltage:200µV(max.)
• Rail-to-railinputandoutput
• Lowcurrentconsumption:800µA(max.)
• Gainbandwidthproduct:2.7MHz
• Lowsupplyvoltage:2.7to16V
• Lowinputbiascurrent:50pA(max.)
• HighESDtolerance:4kVHBM
• AEC-Q100qualified
APPlICATIOnS• Battery-poweredinstrumentation
• Instrumentationamplifiers
• Activefiltering
• DACbuffers
• High-impedancesensorinterfaces
• Currentsensing(highandlowside)
• Automotive
Input common mode voltage (V)
100
80
60
40
20
0
Inpu
t bia
s cu
rren
t (pA
)
-200 6 124 102 8
Input common mode voltage (V)14 16
Vcc = 16 VT = 25 °C
600
400
200
0
-200
-400
Inpu
t offs
et v
olta
ge (µ
V)
-600-40 20 800 60-20 40
Temperature (°C)100 120
Vio limit
Vcc = 16 VVicm = 8 V
13
Part numberMax. lib @ 25 °C
(pA)
Max. vIO @ 25 °C
(µv)
vIO
drift(µv/°C)
Min. vCC
(v)
Max. vCC (v)
Typ. GBP
(MHz)
Typ.SR
(v/µs)
Typ. ICC per channel
(mA)
Typ. 1 kHz noise
(nv/√Hz)
Rail to railSingle dual Quad
Automotive gradeIn Out
low input bias current
TSu101/2/4* 5 3000 2 1.5 5.5 0.008 0.003 580nA 265 Yes Yes • • •
TSV911A/2A/4A 10 1500 5 2.5 5.5 8 4.5 0.78 27 Yes Yes • • • ü
TSV611A/2A 10 800 2 1.5 5.5 0.12 0.04 0.0105 105 Yes Yes • •
TSV6191A/2A 10 800 2 1.5 5.5 0.45 0.08 0.0105 105 Yes Yes • •
TSV621A/2A/4A 10 800 2 1.5 5.5 0.42 0.14 0.029 77 Yes Yes • • •
TSV6291A/2A/4A 10 800 2 1.5 5.5 1.3 0.5 0.029 77 Yes Yes • • •
TSV631A/2A/4A 10 500 2 1.5 5.5 0.88 0.34 0.06 60 Yes Yes • • • ü
TSV6391A/2A/4A 10 500 2 1.5 5.5 2.4 1.1 0.06 60 Yes Yes • • • ü
TSu111* 10 150 0.5 1.5 5.5 0.01 0.0035 0.95 240 Yes Yes •
TSV711/2/4 10 200 3 1.5 5.5 0.12 0.06 0.01 100 Yes Yes • • •
TSV731/2/4 10 200 2 1.5 5.5 0.9 0.35 0.06 35 Yes Yes • • •
TSV521A/2A/4A 10 600 3 2.7 5.5 1.15 0.89 0.045 57 Yes Yes • • • ü
TSX921/2* 100 4000 2 4 16 10 17.2 2.8 16.5 Yes Yes • • ü
TSX9291/2* 100 4000 2 4 16 16 26 2.8 16.5 Yes Yes • •
TSX631A/2A/4A* 100 500 1 3.3 16 0.2 0.12 0.045 60 Yes Yes • • • ü
TSX561A/2A/4A* 100 600 2 3 16 0.9 1.1 0.25 48 Yes Yes • • • ü
TL071/2/4 100 3000 10 6 36 4 16 1.4 15 No No • • • ü
TS931B/2B/4B 150 2000 3 2.7 10 0.1 0.05 0.02 76 No Yes • • • ü
TS941A/2A/4A 150 5000 7 2.5 10 0.01 0.045 0.0012 / No Yes • • •
TS912B/4A 150 2000 5 2.7 16 1.4 1 0.2 30 Yes Yes • • ü
TS27M2B/4A 150 2000 2 3 16 1 0.6 0.15 38 No No • •
TSZ121/2/4* 200 5 0.01 1.8 5.5 0.4 0.19 0.031 37 Yes Yes • • • ü
TL061/2B/4B 200 3000 10 6 36 1 3.5 0.2 42 No No • • •
TL082B 200 3000 10 6 36 4 16 1.4 15 No No • • • ü
TS27L2/4 150 5000 2 3 16 0.1 0.04 10 68 No No • •
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
14
lOw vCC MInTSv611/2: rail-to-rail input and output 5 v low-power CMOS amplifiers
TheTSV61familyofsingleanddualoperationalamplifiersofferslowvoltage,low-poweroperationandrail-to-railinputandoutput.Thedevicesalsofeatureanultra-lowinputbiascurrentaswellasalowinputoffsetvoltage.TheTSV61serieshavea
gainbandwidthproductof120kHzwhileconsumingonly10μAat5Vandareabletoworkatverylowsupplyvoltagelevels,downto1.5V.ThesefeaturesmaketheTSV61familyidealforsensorinterfaces,batterysuppliedandportableapplications,aswellasactivefiltering.
Supply current vs. supply voltage at Vicm = Vcc/2
FEATuRES• Lowinputbiascurrent:1pA(typ.)
• Lowinputoffsetvoltage:800μV(max.)Aversion
• Rail-to-railinputandoutput
• Lowsupplyvoltage:1.5to5.5V
• Lowpowerconsumption:10μA(typ.)at5V
• Industrialtemperaturerange:-40to+85°C
• Gainbandwidthproduct:120kHz(typ.)
APPlICATIOnS• Battery-poweredapplications
• Smokedetectors
• Proximitysensors
• Portabledevices
• Signalconditioning
• Activefiltering
• Medicalinstrumentation
Slew rate vs. supply voltage
Part numberMin.
vCC (v)Max.
vCC (v)Typ. GBP
(MHz)Typ. ICC per
channel (µA)Max. vIO @ 25 °C (µv)
Max. lib @ 25 °C (pA)
Typ. 1 kHz noise (nv/√Hz)
Typ. IOuT
(mA)Rail to rail
Single dual QuadAutomotive
gradeIn Out
low voltage (vCC min. ≤ 1.8 v)
TSV611A/2A 1.5 5.5 0.12 10 800 10 105 60 Yes Yes • •
TSV6191A/2A 1.5 5.5 0.45 10 800 10 105 60 Yes Yes • •
TSV621A/2A/4A 1.5 5.5 0.42 29 800 10 77 69 Yes Yes • • •
TSV6291A/2A/4A 1.5 5.5 1.3 29 800 10 77 69 Yes Yes • • •
TSV631A/2A/4A 1.5 5.5 0.88 60 500 10 60 69 Yes Yes • • • ü
TSV6391A/2A/4A 1.5 5.5 2.4 60 500 10 60 69 Yes Yes • • • ü
TSU101/2/4 1.5 5.5 0.008 0.58 3000 5 265 5 Yes Yes • • •
TSu111* 1.5 5.5 0.01 0.95 150 5 240 10 Yes Yes •
TSV711/2/4 1.5 5.5 0.12 10 200 10 100 45 Yes Yes • • •
TSV731/2/4 1.5 5.5 0.9 60 200 10 35 52 Yes Yes • • •
TSZ121/2/4* 1.8 5.5 0.4 31 5 200 37 17 Yes Yes • • • ü
TS1851A/2A/4A 1.8 6 0.65 162 1000 63000 40 48 Yes Yes • • •
TS1871A/2A/4A 1.8 6 1.8 400 1000 130000 27 72 Yes Yes • • • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
0.06
0.04
0.02
0.00
-0.02Slew
rate
(V/µ
s)
-0.04
Rload = 10 kΩ Cload = 100 pFVload at 0.5 of Vcc
1.5 3.0 4.52.5 4.02.0 3.5Supply voltage (V)
5.0 5.5
T = 85 °C T = 25 °C T = -40 °C
12
10
8
7
5
3
Supp
ly C
urre
nt (µ
A)
0
2
T = 85 °C T = 25 °C T = -40 °C
0 321 4Supply voltage (V)
5
15
HIGH OuTPuT CuRREnT & CAPACITIvE lOAdTSX561/2/4: high merit factor 16 v with large output drive operational amplifiers
TheTSX561/2/4andTSX561A/2A/4AseriesofoperationalamplifiersbenefitfromST’s16VCMOStechnologytoofferstate-of-the-artaccuracyandperformanceinthesmallestindustrialpackages.TheTSX56seriesofferaperformingspeed/power
consumptionratio,900kHzgainbandwidthproductwhileconsumingonly250μAat16V.SuchfeaturesmaketheTSX56seriesidealforsensorinterfacesandindustrialsignalconditioning.ThewidetemperaturerangeandhighESDtoleranceeaseuseinharshautomotiveapplications.
Slew rate vs. supply voltage
FEATuRES• Lowpowerconsumption:235μA(typ.)at5V
• Supplyvoltage:3to16V
• Gainbandwidthproduct:900kHz(typ.)
• Lowinputbiascurrent:1pA(typ.)
• HightolerancetoESD:4kV
• 90mAoutputcurrentcapabilityunder16V
• Lowoffsetvoltage• “A”version:600μV(max.)• Standardversion:1mV(max.)
• Extendedtemperaturerange:-40to+125°C
• Automotivequalification
• AvailableinSOT23-5,DFN8(2x2mm),Mini-SO8,SO8,TSSOP14andQFN16(3x3mm)packages
APPlICATIOnS• Industrialandautomotivesignalconditioning
• Activefiltering
• Medicalinstrumentation
• Highimpedancesensors
Output current vs. output voltage at Vcc = 16 V
Part numberTyp. IOuT
(mA)Min.
vCC (v)Max.
vCC (v)Typ. GBP
(MHz)Typ. SR(v/µs)
Typ. ICC per channel (mA)
Rail to railSingle dual Quad
Automotive gradeIn Out
High output current (> 30 mA)TS921/2/4 80 2.7 12 4 1.3 1 Yes Yes • • • üTSX561A/2A/4A* 90 3 16 0.9 1.1 0.25 Yes Yes • • • üTSX631A/2A/4A* 90 3.3 16 0.2 0.12 0.045 Yes Yes • • • üTS507 115 2.7 5.5 1.9 0.6 0.85 Yes Yes • üTS982 200 2.5 5.5 2.2 0.7 5.5 Yes Yes • ü
High capacitive load (cl > 500 pF)TS1851A/2A/4A 48 1.8 6 0.65 0.25 0.162 Yes Yes • • •TSV321A/358A/324A 80 2.5 6 1.4 0.6 0.5 Yes Yes • • • üTS9222/4 80 2.7 12 4 1.3 0.9 Yes Yes • • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
100
75
0
-25
-50
-75
Outp
ut c
urre
nt (m
A)
-1000.0 6.0 12.04.0 10.02.0 8.0
Output voltage (V)14.0 16.0
50
25
T = 125 °C T = 25 °C T = -40 °C
SinkVid = -1 V
SourceVid = 1 V
1.5
1.0
0.5
0.0
-0.5
-1.0
Slew
rate
(V/µ
s)
-1.50.0 6.0 12.04.0 10.02.0 8.0
Vcc (V)14.0 16.0
T = 125 °C T = 25 °C T = -40 °C
Vicm = Vrl = Vcc/2Rl = 10 kΩ, Cl = 100 pF
Vin from 0.5 V to Vcc - 0.5 VSR calculated from 1 V to Vcc - 1 V
16
SPEEdTSX9291: high-speed 16 v rail-to-rail I/O CMOS operational amplifier
TheTSX9291andTSX9292operationalamplifiersofferexcellentACcharacteristicssuchas16MHzgainbandwidth,27V/μsslewrate,and0.0003%THD+N.Theyaredecompensatedamplifierswhicharestablewhenusedwithagainhigherthan2or
lowerthan-1.Therail-to-railinputandoutputcapabilityofthesedevicesoperatesonawidesupplyvoltagerangeof4to16V.TheselasttwofeaturesmaketheTSX929seriesparticularlywell-adaptedforawiderangeofapplicationssuchascommunications,I/VamplifiersforADCs,andactivefilteringapplications.
Slew rate vs. supply voltage and temperature
FEATuRES• Rail-to-railinputandoutput
• Widesupplyvoltage:4to16V
• Gainbandwidthproduct:16MHz(typ.)at16V
• Lowpowerconsumption:2.8mA(typ.)at16V
• Slewrate:27V/μs
• Stablewhenusedingainconfiguration
• Lowinputbiascurrent:10pA(typ.)
• HightolerancetoESD:4kVHBM
• Extendedtemperaturerange:-40to+125°C
• Automotivequalification
APPlICATIOnS• Communications
• Processcontrol
• Activefiltering
• Testequipment
Bode diagram vs. temperature for Vcc = 16 V
40
0
-20
-40
Gain
(dB)
Phas
e (°
)
1 100010010Frequency (kHz)
10000
20
T = 125 °C T = 25 °C T = -40 °C
250
200
-100
-50
-150
-200
-250
100
150
50
0
Gain
Phase
Vicm = 8 V, G = 100Rl = 10 kΩ, Cl = 20 pF, Vrl = Vcc/2
30
20
10
0
-10
Slew
Rat
e (V
/µs)
-20
-30
4 5 6Vcc (V)
7 8 9 10 1211 13 14 15 16
T = 125 °C T = 25 °C T = -40 °C
SR positive
SR negative
Vicm = VRI = Vcc/2RI = 10 kΩ, Cl = 20 pFVin from 0.5 V to Vcc -0.5 V
17
Part numberTyp. GBP
(MHz)
Typ.SR
(v(µS)
Min.vCC
(v)
Max. vCC (v)
Typ. ICC per channel
(mA)
Max. vIO @ 25 °C
(µv)
Typ. 1 kHz noise
(nv/√Hz)
Typ. IOuT
(mA)
Rail to railSingle dual Quad
Automotive gradeIn Out
Fast and high slew rate (GBP ≥ 4 MHz)
TS921/2A/4A 4 1.3 2.7 12 1 900 9 80 Yes Yes • • • ü
TL071/2/4 4 16 6 36 1.4 3000 15 40 No No • • • ü
MC4558 5.5 2.2 4 40 1.15 5000 12 20 No No •
TSV911A/2A/4A 8 4.5 2.5 5.5 0.78 1500 27 35 Yes Yes • • • ü
TSX7191/2* 8.5 2.4 2.7 16 0.66 200 22 70 Yes Yes • • ü
TSX921/2* 10 17.2 4 16 2.8 4000 16.5 62 Yes Yes • • ü
TS461/2/4 12 4 2.7 10 2 5000 4 1.5 No Yes • • •
TS971/2/4 12 4 2.7 10 2 5000 4 100 No Yes • • • ü
MC33078/9 15 7 5 30 2 2000 4.5 30 No No • • ü
TS522/4 15 7 5 30 2 850 4.5 33 No No • • ü
TSX9291/2* 16 26 4 16 2.8 4000 16.5 62 Yes Yes • •
TSV991A/2A/4A 20 10 2.5 5.5 0.82 1500 27 35 Yes Yes • • • ü
TSH22/4 25 15 3 30 2.15 2500 14 37 No No • •
TSH80/2 65 115 4.5 12 8.2 10000 11 55 No Yes • • ü
video buffers
TSH343 (6dB gain) 280 780 3 5.5 14.4 N/A 29 85 No No 3 lines
TSH122 (6dB gain) 9.5 x 2.25 5.5 2 N/A 51 75 No No •
TSH73/74 70 100 3 12 9.8 10000 11 55 No Yes 3 & 4 lines
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
18
Voltage gain and phase vs. frequency at Vcc = 1.5 V
FEATuRES• Lowoffsetvoltage:500µV(max.)Aversion
• Lowpowerconsumption:60µA(typ.)at5V
• Lowsupplyvoltage:1.5to5.5V
• Gainbandwidthproduct:880kHz(typ.)
• Lowpowershutdownmode:5nA(typ.)
• Highoutputcurrent:63mAatV
CC=5V
• Lowinputbiascurrent:1pA(typ.)
• Rail-to-railinputandoutput
• Extendedtemperaturerange:-40to+125°C
• Automotivequalification
APPlICATIOnS• Battery-poweredapplications
• Portabledevices
• Activefiltering
• Medicalinstrumentation
Supply current vs. supply voltage at Vicm = Vcc/2
T = 125 °C T = 25 °C T = -40 °C
60
13
40
27
Supp
ly C
urre
nt (µ
A)
0
53
47
33
20
7
0 321 4Supply voltage (V)
5
40
0
-20
-40
Gain
(dB)
Phas
e (°
)
10000 1000000100000Frequency (Hz)
1E7
20
T = 125 °C T = 25 °C T = -40 °C
150
-100
-50
-150
100
50
0
Gain
Vicm = 0.75 V, G = 100Rl = 2 kΩ, Cl = 100 pF, Vrl = Vcc/2
Phase
SMAll PACKAGESTSv630IQ2T: ultra-small dFn8 (2 x 2 mm), 5 v low-power rail-to-rail operational amplifier
TheTSV630IQ2Tisasingleoperationalamplifierofferinglowvoltage,low-poweroperation,andrail-to-railinputandoutput.Ithasaverylowinputbiascurrentandalowoffsetvoltagemakingitidealforapplicationsthatrequireprecision.Itcanoperate
atpowersuppliesrangingfrom1.5to5.5Vandisthereforeverysuitableforbattery-powereddevices,extendingbatterylife.Thisoffersanexcellentspeed/powerconsumptionratio,offeringan880kHzgainbandwidthwhileconsumingonly60µAwitha5Vsupply.Itisalsounitygainstableforcapacitiveloadsupto100pF.TheTSV630IQ2TisinternallyadjustedtoprovideverynarrowdispersionofACandDCparameters.Theproductprovidesashutdownfunction.TheDFN8(2x2mm)micropackageisguaranteedforindustrialtemperaturerangesfrom-40to+125°C.ThesefeaturescombinedmaketheTSV630IQ2Tidealforsensorinterfaces,battery-suppliedandportableapplications,aswellasactivefiltering.ADFN6(1.2x1.3mm)packageisalsoavailableuponrequest.Pleasecontactsalesofficeforfurtherinformation.
19
Part number PackageMin. vCC
(v)
Max vCC
(v)
Typ. GBP
(MHz)
Typ. SR
(v/µs)
Typ. ICC per
channel (mA)
Max. vIO @ 25 °C (µv)
Typ. IOuT
(mA)
Rail to railSingle dual Quad
Automotive grade
In Out
ultra small packages
TSZ121/2/4*SC70-5 2x2.1 pitch 0.65,DFN8 2x2& QFN16 4x4 pitch 0.5
1.8 5.5 0.4 0.19 0.031 5 17 Yes Yes • • •
TSV611A SC70-5 2x2.1 pitch 0.65 1.5 5.5 0.12 0.04 0.0105 800 60 Yes Yes •
TSV621A SC70-5 2x2.1 pitch 0.65 1.5 5.5 0.42 0.19 0.029 800 69 Yes Yes •
TSV631/2/4SC70-5 2x2.1 pitch 0.65,DFN8 2x2& QFN16 3x3 pitch 0.5
1.5 5.5 0.88 0.34 0.06 800 69 Yes Yes • • •
TSV630DFN8 2x2,DFN6 1.2x1.3 (under request)
1.5 5.5 0.88 0.34 0.06 3000 69 Yes Yes •
TSV521A/2A/4SC70-5 2x2.1 pitch 0.65,DFN8 2x2& QFN16 3x3 pitch 0.5
2.7 5.5 1.15 0.89 0.045 600 30 Yes Yes • • •
TSV711/2/4SC70-5 2x2.1 pitch 0.65,DFN8 2x2& QFN16 3x3 pitch 0.5
1.5 5.5 0.12 0.06 0.01 200 45 Yes Yes • • •
TSV731/2/4SC70-5 2x2.1 pitch 0.65,DFN8 2x2& QFN16 3x3 pitch 0.5
1.5 5.5 0.9 0.35 0.06 200 52 Yes Yes • • •
TSV991ADFN6 1.3x1.6x0.55 pitch 0.4 x& DFN8 2x2 pitch 0.5
2.5 5.5 20 10 0.82 1500 35 Yes Yes •
TSU101/2/4SC70-5 2x2.1 pitch 0.65,DFN8 2x2& QFN16 3x3 pitch 0.5
1.5 5.5 0.008 0.003 580nA 3000 5 Yes Yes • • •
LMV321L SC70-5 2x2.1 pitch 0.65 2.7 5.5 1.3 0.7 0.13 7000 58 No Yes •
LMV821A/2ASC70-5 2x2.1 pitch 0.65& DFN8 2x2
2.5 5.5 5.5 1.9 0.3 800 56 No Yes • •
TS972 DFN8 3x3 pitch 0.5 2.7 10 12 4 2 5000 100 No Yes • ü
TSX562/4*DFN8 2x2& QFN16 3x3 pitch 0.5
3 16 0.9 1.1 0.25 1000 90 Yes Yes • •
TSX632/4*DFN8 2x2& QFN16 3x3 pitch 0.5
3.3 16 0.2 0.12 0.045 1500 90 Yes Yes • •
TSX922* DFN8 2x2 pitch 0.5 4 16 10 17.2 2.8 4000 62 Yes Yes •
TSX9292* DFN8 2x2 pitch 0.5 4 16 16 26 2.8 4000 62 Yes Yes •
LM2904 DFN8 2x2 pitch 0.5 3 30 1.1 0.6 0.35 7000 30 No No •
TSB611* SOT23-5 2.8x2.9 2.7 36 0.56 0.2 0.1 1000 60 No Yes • ü
TS321A SOT23-5 2.8x2.9 3 30 0.8 0.4 0.6 2000 40 No No • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
20
FEATuRES• Low-powerconsumption:380µA(typ.)
• Widesupplyvoltage:4to36V
• Rail-to-railinputandoutput
• Gainbandwidthproduct:2.5MHz
• Lowinputbiascurrent:30nA(max.)
• HightolerancetoESD:4kVHBM
• Extendedtemperaturerange:-40to+125°C
• Automotivegrade
• SmallSMDpackages
APPlICATIOnS• Activefiltering
• Audiosystems
• Automotive
• Powersupplies
• Industrial
• Low/Highsidecurrentsensing
EMI HARdEnEdTSB572: low-power, 2.5 MHz, rail-to-rail input and output, 36 v operational amplifier
TheTSB572dualoperationalamplifieroffersanextendedvoltageoperatingrangefrom4to36Vandrail-to-railinput/output.TheTSB572offersaverygoodspeed/powerconsumptionratiowith2.5MHzgainbandwidthproductwhileconsumingonly380µA
typicallywitha36Vsupply.StabilityandrobustnessoftheTSB572makeitanidealsolutionforawidevoltagerangeofapplications.
EMI rejection ratio Vcc = 36 V
90
60
40
80
50
30
20
EMI R
ejec
tion
Ratio
In+
(dB)
10 1000100Frequency (MHz)
70
Vcc = 36 V,Vicm = Vcc/2Vin = 100 mVpeak
Part numberMin.
vCC (v)Max.
vCC (v)Typ. GBP
(MHz)Typ. SR (v/µs)
Typ. ICC per channel (mA)
Max. vIO @ 25 °C (µv)
Typ. IOuT
(mA)
Rail to railSingle dual Quad
Automotive grade In Out
EMI hardened
TSV711/2/4 1.5 5.5 0.12 0.06 0.01 200 45 Yes Yes • • •
TSV731/2/4 1.5 5.5 0.9 0.35 0.06 200 52 Yes Yes • • •
TSV632A/4A 1.5 5.5 0.88 0.34 0.06 500 69 Yes Yes • • ü
TSZ121/2/4* 1.8 5.5 0.4 0.19 0.031 5 17 Yes Yes • • • ü
TSX561A/2A/4A* 3 16 0.9 1.1 0.25 600 90 Yes Yes • • • ü
TSX631A/2A/4A* 3.3 16 0.2 0.12 0.045 500 90 Yes Yes • • • ü
TSX711A/2* 2.7 16 2.7 1.2 0.66 100 54 Yes Yes • • ü
TSB571/2* 4 36 2.5 1 0.38 1500 60 Yes Yes • • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
21
Input offset voltage distribution at T = 150 °C
Positive slew rate
FEATuRES• Rail-to-railinputandoutput
• Widebandwidth
• Lowpowerconsumption:820µA(typ.)
• Highoutputcurrent:35mA
• Supplyvoltage:2.5to5.5V
• Lowinputbiascurrent:1pA(typ.)
• Ultra-hightemperaturerange:-40to+150°C
• ESDinternalprotection≥5kVHBM
• SO8package
• AEC-Q100qualified
APPlICATIOn• Automotive(gearbox,exhaust,enginecontrol,brakingsystem,…)
HIGH OPERATInG TEMPERATuRETSv912H: high-temperature rail-to-rail input and output wide bandwidth operational amplifier
TheTSV912Hoperationalamplifierofferslow-voltageoperationandrail-to-railinputandoutput.Thedevicefeaturesanexcellentspeed/powerconsumptionratio,offeringan8MHzgain-bandwidthproductwhileconsumingonly1.1mA(maximum)at5V.Itis
unitygainstableandfeaturesanultra-lowinputbiascurrent.TheTSV912Hisahigh-temperatureversionoftheTSV912,andcanoperatefrom-40to+150°Cwithuniquecharacteristics.Itsmaintargetapplicationsareautomotive,butthedeviceisalsoidealforsensorinterfaces,battery-suppliedandportableapplications,aswellasactivefiltering.
Part numberTyp. GBP
(MHz)Typ. SR (v/µs)
Min.vCC (v)
Max.vCC (v)
Typ. ICC per channel (mA)
Rail to rail Operating temperature range
Package dualAutomotive
gradeIn Out
High temperature range amplifiers
LM2904AH/WH 1.1 0.6 3 30 0.5 GND No -40 to +150 °C TSSOP8, SO8, Mini-SO8 • ü
TSV912H 8 4.5 2.5 5.5 0.82 Yes Yes -40 to +150 °C SO8 • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.
400
300
200
100
Quan
tity
of p
arts
0-2.0 -0.5 1.0-1.0 0.5-1.5 0.0
Input offset voltage (mV)1.5 2.0
Vcc = 5 VVicm = 2.5 V
Tamb = 150 °C
4
3
2
1Posi
tive
Slew
rate
(V/µ
s)
02.5 4.03.5 5.03.0 4.5
Supply voltage (V)5.5
T = 125 °C T = 25 °C T = -40 °CT = 150 °C
Vin: from 0.5 V to Vcc -0.5 VSR: calculated from 10% to 90%
22
Part numberTyp. GBP
(MHz)
Typ. SR
(v/µs)
Typ. THd @ 1 kHz
(%)
Min. vCC (v)
Max.vCC (v)
Typ. ICC per channel
(mA)
Typ. Avd (dB)
Single dual QuadTyp. 1 kHz
noise (nv/√Hz)
Rail to rail Out
Package
Audio amplifiers
TS461/2/4 12 4 0.003 2.7 10 2 80 • • • 4 YesSOT23-5, SO8, Mini-SO8, TSSOP8, SO14, TSSOP14
TS921/2A/4A 4 1.3 0.005 2.7 12 1 91 • • • 9 YesFlip-chip, SO8, TSSOP8, SO14,
TSSOP14
TS971/2/4 12 4 0.003 2.7 10 2 80 • • • 4 YesSOT23-5, SO8, DFN8, TSSOP8,
SO14, TSSOP14
MC33078/9 15 7 0.002 5 30 2 100 • • 4.5 No SO8, SO14
THD vs Vout, Vcc = 5 V
FEATuRES• Rail-to-railoutputvoltageswing±2.4VatV
CC=±2.5V
• Verylownoiselevel:4nV/√Hz
• Ultra-lowdistortion:0.003%
• Highdynamicfeatures:12MHz,4V/µs
• Supplyvoltage:2.7to10V
• ESDprotection:2kVHBM
• Latch-upimmunity(ClassA)
APPlICATIOnS• Portableandhandhelddevices
• Instrumentationandsensingtechnology
• Professionalaudiocircuits
lOw-POwER AudIO AMPlIFIERSTS971/2/4: output rail-to-rail very low noise operational amplifier
TheTS97seriesofoperationalamplifiersoperatewithvoltagesaslowas±1.35Vandfeatureoutputrail-to-railsignalswing.TheTS97devicesareparticularlywellsuitedforportableandbattery-suppliedequipment.Verylownoiseandlowdistortion
characteristicsmakethemidealforaudiopre-amplification.TheTS97devicesareavailableinavarietyofpackagestosuitalltypesofapplications.Forapplicationswherespacesavingiscritical,theSOT23-5package(2.8x2.9mm)ortheDFN8package(3x3mm)simplifytheboarddesignbecausetheycanbeplacedanywhereonit.
1
0.1
0.01
THD
(%)
0.0010 10.5
Vout (Vrms)1.5
Rl = 2 kΩ Rl = 10 kΩ
Tamb = 25 °C
23
Output power vs. load resistance Vcc = 3.3 V
Output power vs. load resistance Vcc = 5 V
FEATuRES• Popandclicknoiseprotectioncircuitry
• OperatingrangefromVCC=2.2to5.5V
• Outputpower:• 120mWat5V,into16Ωwith0.1%THD+N(max.)(1kHz)
• 55mWat3.3V,into16Ωwith0.1%THD+N(max.)(1kHz)
• Lowcurrentconsumption:2.7mA(max.)at5V
• Ultra-lowstandbycurrentconsumption:10nA(typ.)
• Highcrosstalkimmunity:102dB(f=1kHz)
• Short-circuitprotectioncircuitry
• DFN8(2x2mm)package
APPlICATIOnS• Headphoneamplifiers
• Mobilephones,handhelddevicesandcomputermotherboards
• High-endTVsandportableaudioplayers
ClASS AB, ClASS d & HEAdPHOnE AMPlIFIERSTS488: pop-free 120 mw stereo headphone amplifier
TheTS488/9isanenhancementofTS486/7thateliminatespopandclicknoiseandreducesthenumberofexternalpassivecomponents.TheTS488isadualaudiopoweramplifiercapableofdriving,insingle-endedmode,eithera16Ωora32Ωstereo
headset.Capableofdescendingtolowvoltages,itdeliversupto31mWperchannel(into16Ωloads)ofcontinuousaveragepowerwith0.1%THD+Nintheaudiobandwidthfroma2.5Vpowersupply.Anexternally-controlledstandbymodereducesthesupplycurrentto10nA(typ.).TheunitygainstableTS488/9isconfiguredbyexternalgain-settingresistors.
125
100
50
75
25
Outp
ut P
ower
(mW
)
08 24 32 40 48 5616
Load resistance (Ω)64
THD + N = 10% THD + N = 1%
F = 1 kHzTamb = 25 °C
BW = 20 Hz - 120 kHz
250
200
100
150
50
Outp
ut P
ower
(mW
)
08 24 32 40 48 5616
Load resistance (Ω)64
THD + N = 10% THD + N = 1%
F = 1 kHzTamb = 25 °C
BW = 20 Hz - 120 kHz
24
Part number
Output Power per channel Min. vCC (v)
Max.vCC (v)
InputMono/Stereo
Typ. ICC no load (mA)
Typ. SnR (dB)
Gain, control
Pop andnoise
cancellation
Max. Stdby
ICC (µA)Package
@ 1% THdvCC max (w)
@ 10% THdvCC max (w)
Class AB audio low power amplifiers
TDA2822D N/A700 mW into 8 Ω800 mW into 16 Ω
1.8 15
Single-ended
Bridge or Stereo
N/A N/A No No N/A SO8
TS48711.28 W into 4 Ω
1 W into 8 Ω2.08 W into 4 Ω1.45 W into 8 Ω
2.5 5.5
Mono
6 97 No
Yes
1 SO8, Mini-SO8
TS48901.28 W into 4 Ω
1 W into 8 Ω2.08 W into 4 Ω1.45 W into 8 Ω
2.2 5.5 6 97 No 1 Mini-SO8
TS49901.2 W into 8 Ω0.7 W into 16 Ω
1.5 W into 8 Ω0.88 W into 16 Ω
2.2 5.5 3.7 103 No 1Mini-SO8,DFN8 3x3,Flip-chip9
TS49941 W into 8 Ω
0.6 W into 16 Ω1.48 W into 8 Ω0.9 W into 16 Ω
2.5 5.5
Differential
4 100 No 1DFN10 3x3,Mini-SO8
TS4994FCTS4995
1.2 W into 8 Ω0.7 W into 16 Ω
1.5 W into 8 Ω0.88 W into 16 Ω
2.5 5.5 4 100 No 1 Flip-chip9
TS4909158 mW into 16 Ω88 mW into 32 Ω
180 mW into 16 Ω102 mW into 32 Ω
2.2 5.5
Single-ended Stereo
2.1 105External
res1 DFN10 3x3
TS49841 W into 8 Ω
0.65 W into 16 Ω1.25 W into 8 Ω0.8 W into 16 Ω
2.2 5.5 7.4 100External
res1 QFN16 4x4
Headphone amplifiers
TS419/21295 mW into 16 Ω207 mW into 32 Ω
367 mW into 16 Ω258 mW into 32 Ω
2 5.5
Single-ended
Mono 1.8 98External
res
Yes
1Mini-SO8,DFN8 3x3
TS482107 mW into 16 Ω67.5 mW into 32 Ω
131 mW into 16 Ω82 mW into 32 Ω
2 5.5
Stereo
5.5 110External
resN/A SO8, Mini-SO8
TS488120 mW into 16 Ω 80 mW into 32 Ω
160 mW into 16 Ω 100 mW into 32 Ω
2.2 5.5 2 105External
res1 DFN8 2x2
TS4909158 mW into 16 Ω88 mW into 32 Ω
190 mW into 16 Ω105 mW into 32 Ω
2.2 5.5 2.1 105External
res1 DFN10 3x3
TS4621E/ML65 mW into 16 Ω 43 mW into 32 Ω
92 mW into 16 Ω 58 mW into 32 Ω
2.3 4.8 Differential 1.2 100 I2C 5 Flip-chip16
Microphone preamplifiers
TS472 N/A N/A 2.2 5.5 Differential Differential 1.8 90External
resN/A 1
QFN24 4x4,Flip-chip12
Class d audio low power amplifiers
TS2007FC2.3W into 4Ω1.4W into 8Ω
3 W into 4 Ω1.75 W into 8 Ω
2.4 5.5
Differential
Mono 2.5 936 dB,12 dB
Yes 2 Flip-chip9
TS2012EI1.85 W into 4 Ω1.15 W into 8 Ω
2.5 W into 4 Ω1.6 W into 8 Ω
2.5 5.5 Stereo 5 996,12, 8, 24 dB
Yes 2 Flip-chip16
TS4962/2M2.2 W into 4 Ω1.4 W into 8 Ω
2.8 W into 4 Ω1.7 W into 8 Ω
2.4 5.5 Mono 2.3 85External
resYes 1
DFN8 2x2,Flip-chip9
TS49992.5 W into 4 Ω1.35 W into 8 Ω
2.8 W into 4 Ω1.7 W into 8 Ω
2.4 5.5 Stereo 5 993.5, 6,
9.5 and 12 dB
Yes 2 Flip-chip18
Rsense
Iload
+
-
Rg2Rg1
TSC103 Rg3K2
Gnd GndµController
VmVp
Senseamplifier Voltage
buffer
Vcc-
Vcc+
SEL1 GPIO1
GPIO2
Vout
SEL2
Out
Vcc
5 V
Vsense
Load
ADC
25
FEATuRES• Independentsupplyandinputcommon-modevoltages
• Widecommon-modeoperatingrange:2.9to70Vinsingle-supplyconfiguration,-2.1to65Vindual-supplyconfiguration
• Widecommon-modesurvivingrange:-16to75V(reversedbatteryandload-dumpconditions)
• Supplyvoltagerange:2.7to5.5Vinsingle-supplyconfiguration
• Lowcurrentconsumption:ICC(max.)=360μA
• Pinselectablegain:20V/V,25V/V,50V/Vor100V/V
• Bufferedoutput
• SO8&TSSOP8packages
• AEC-Q100qualified
APPlICATIOnS• Automotivecurrentmonitoring
• DCmotorcontrol
• Photovoltaicsystems
• Batterychargers
• Precisioncurrentsources
• Currentmonitoringofnotebookcomputers
• High-endpowersupplies
CuRREnT-SEnSE AMPlIFIERSTSC103: high-voltage, high-side 70 v current-sense amplifier
TheTSC103measuresasmalldifferentialvoltageonahigh-sideshuntresistorandtranslatesitintoaground-referencedoutputvoltage.Thegainisadjustabletofourdifferentvaluesfrom20V/Vupto100V/Vbytwoselectionpins.Wideinputcommon-mode
voltagerange,lowquiescentcurrent,andtinyTSSOP8packagingenableuseinawidevarietyofapplications.Theinputcommon-modeandpower-supplyvoltagesareindependent.Thecommon-modevoltagecanrangefrom2.9to70Vinthesingle-supplyconfigurationorbeoffsetbyanadjustablevoltagesuppliedontheVCC-pininthedual-supplyconfiguration.Withacurrentconsumptionlowerthan360μAandavirtuallynullinputleakagecurrentinstandbymode,thepowerconsumptionintheapplicationsisminimized.
Part number
Max. ICC
(µA)
Common mode
operating range (v)
vCC (v) voltage gain(v/v)
Operating temperature
(°C) PackageAutomotive
grade
Min. Max. Min. Max. Min. Max.
Hide side current sensing
TSC101 300 2.8 30 4 24 20, 50, 100 -40 125 SOT23-5 ü
TSC888 1000 2.8 24 4 24 20, 50, 100 -40 125 SOT23-5
TSC102 420 2.8 30 3.5 5.5 Adjustable -40 125 TSSOP8, SO8 ü
TSC1012 300 2.8 30 3.5 5.5 20, 50 -40 125 TSSOP8 ü
TSC103 360 2.9 70 2.7 5.5 20, 25, 50, 100 -40 125 TSSOP8, SO8 ü
TSC1031 360 2.9 70 2.7 5.5 50, 100 -40 125 TSSOP8, SO8 ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.
Order code description Reference
STEvAl-ISQ007v1 High-side current-sense amplifier demonstration board based on TSC101 AN2727
STEvAl-ISQ010v1 High-side current-sense amplifier demonstration board based on TSC102 DB0982
STEvAl-ISQ013v1 Low-side current sensing based on TS507 AN3222
STEvAl-ISQ014v1 Low-side current sensing based on TSZ121 UM1737
EvAluATIOn BOARdS
Common-mode voltage: 2.9 V to 70 V
26
Current consumption per operator vs. temperature
Current consumption per operator vs. toggle frequency
FEATuRES• Ultra-lowcurrentconsumption:220nA(typ/ch.)
• Propagationdelay:2μs(typ.)
• Rail-to-railinput,push-pulloutput
• Supplyoperationfrom0.85to5.5V(TS881)
• Supplyoperationfrom1.1to5.5V(TS882&TS884)
• Extentedtemperaturerange:-40to+125°C
• ESDtolerance:8kVHBM/300VMM
• AvailableinSC70-5,SOT23-5,Mini-SO8,DFN8(2x2mm),SO14,TSSOP14andQFN16(3x3mm)
APPlICATIOnS• Portablesystems
• Signalconditioning
• Medical
MICROPOwERTS881/2/4: 5 v Rail-to-rail nanopower comparators
TheTS881,TS882andtheTS884devicesaresingle,dualandquadcomparatorsfeaturingultra-lowsupplycurrent(220nAtypicalperoperatorwithoutputhigh,V
CC=1.2V,noload)withrail-to-railinputandoutputcapability.Theperformanceofthese
comparatorsallowsthemtobeusedinawiderangeofportableapplications.TheTS882andTS884devicesminimizebatterysupplyleakageandthereforeenhancebatterylifetimeandoperatingfroma1.1to5.5Vsupply.TheTS881isabletooperatedowntotheoutstanding0.85Vsupplyvoltage.Theircapabilitytowithstand8kVHBMESDlevelenablecustomerstousetheminharshconditions.
Comparators
Part numberTyp. ICC per
channel (µA)Min. vCC
(v)Max. vCC
(v)Typ. response time (ns)
100 mv overdriveRail to rail In
Output type Input type Single dual QuadAutomotive
gradenanopower
TS881 0.21 0.85 5.5 2600 Yes Push-pull CMOS •TS882/4 0.21 1.1 5.5 2600 Yes Push-pull CMOS • •
MicropowerTS331/2/4 20 1.6 5 270 Yes Open drain BIP • • • üTS7211 6 2.7 10 400 Yes Push-pull CMOS •TS7221 6 2.7 10 400 Yes Open drain CMOS •TSX3702/4* 5 2.7 16 340 GND Push-pull CMOS • • üTSX393/339* 5 2.7 16 550 GND Open drain CMOS • • üAnynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
400
350
250
300
200
Icc
(nA)
100-40 0 20 40 60 10080-20
Temperature (°C)120
Output LOW Output HIGH
Vcc = 5 VVicm = Vicm/2
150
109
78
23456
Icc
(µA)
0100 100001000
Frequency (Hz)100000
Vcc = 1.2 V Vcc = 2.7 V Vcc = 5 V
Vicm = Vcc/2T = 25 °C
1
27
Propagation delay vs. common mode voltage with negative transition
Propagation delay vs. common mode voltage with positive transition
FEATuRES• Propagationdelay:8ns
• Lowcurrentconsumption:470μA(typ.)at5V
• Rail-to-railinput,push-pulloutput
• Supplyoperationfrom2.2to5V
• Extendedtemperaturerange:-40to+125°C
• ESDtolerance:2kVHBM/200VMM
• SMDpackages
• AEC-Q100qualified
APPlICATIOnS• Telecoms
• Instrumentation
• Signalconditioning
• High-speedsamplingsystems
• Portablecommunicationsystems
SPEEdTS3011: Rail-to-rail high-speed 5 v comparator
TheTS3011singlecomparatorfeaturesahigh-speedresponsetimewithrail-to-railinputs.Specifiedforasupplyvoltageof2.2to5V,thiscomparatorcanoperateoverawidetemperaturerangefrom-40to+125°C.TheTS3011offersmicropower
consumptionaslowasafewhundredmicroamperes,thusprovidinganexcellentratioofpowerconsumptioncurrentversusresponsetime.TheTS3011includespush-pulloutputsandisavailableinsmallpackages(SMD):SOT23-5andSC70-5.
Part numberTyp. ICC per
channel (µA)Min.
vCC (v)Max.
vCC (v)Typ. response time (ns)
100 mv overdriveRail to rail In
Output type Input type Single dual QuadAutomotive
grade
ultra high speed
TS3011 470 2.2 5 8 Yes Push-pull CMOS • ü
High speed
TS3021/2 73 1.8 5 42 Yes Push-pull BIP • • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.
11
10
9
8
7
-0.5 0.0 0.5Vicm (V)
1.5 2.0 3.0 4.0 5.02.5 3.5 4.5 5.5
Vcc = 5 VVov = 50 mV
T = 125 °C T = 25 °C T = -40 °C
Tplh
(ns)
10.0
9.5
9.0
8.5
8.0
0.3
7.5
6.5
6.0-0.5 0.0 0.5
Vicm (V)1.5 2.0 3.0 4.0 5.02.5 3.5 4.5 5.5
Vcc = 5 VVov = 50 mV
T = 125 °C T = 25 °C T = -40 °C
Tplh
(ns)
28
FEATuRES• Lowsupplycurrent:5µA(typ.)percomparator
• Widesinglesupplyrange2.7to16Vordualsupply(±1.35to±8V)
• Extremelylowinputbiascurrent:1pA(typ.)
• Inputcommon-modevoltagerangeincludesground
• Push-pulloutput
• Highinputimpedance:1012Ω(typ.)
• Fastresponsetime:2.7µs(typ.)for5mVoverdrive
• ESDtolerance:4kVHBM,200VMM
• AEC-Q100qualified
APPlICATIOnS• Automotive&industrial
SMAll PACKAGESTSX3702/4: 16 v dual and quad CMOS voltage comparators
TheTSX3702andTSX3704aremicropowerCMOSdualandquadvoltagecomparatorswhichexhibitsaverylowcurrentconsumptionof5µAtypicalpercomparator.ThesedevicehavebeendesignedastheimprovementoftheTS3704:itshowsa
lowercurrentconsumption,abetterinputoffsetvoltage,andanenhancedESDtolerance.TheTSX3702andTSX3704arefullyspecifiedoverawidetemperaturerangeandareproposedinautomotivegradefortheTSSOP14andSO8packages.TheyarefullycompatiblewiththeTS3702&TS3704CMOScomparatorsandareavailablewithsimilarpackages.Thenewtinypackage,QFN16(3x3mm),isalsoproposedfortheTSX3704thusallowingevenmoreintegrationonapplications.Theyarealsoavailableinopen-drainoutputversion,namedTSX339&TSX393.
Part number PackageTyp. ICC per
channel (µA)
Min. vCC (v)
Max. vCC (v)
Typ. response time (ns)
100 mv overdrive
Rail to rail In
Output type Single dual QuadAutomotive
grade
Small packages
TS881 SC70-5 0.21 0.85 5.5 2600 Yes Push-pull •
TS882/4DFN8 2x2,QFN16 3x3
0.21 1.1 5.5 2600 Yes Push-pull • •
TS331/2/4SC70-5,
DFN6 1.2x1.3,DFN8 2x2, QFN16 3x3
20 1.6 5 270 Yes Open drain • • •
TSX3702/4*DFN8 2x2,QFN16 3x3
5 2.7 16 340 GND Push-pull • •
TSX393/339*DFN8 2x2,QFN16 3x3
5 2.7 16 550 GND Open drain • •
TS985*6-Bump CSP
1.2x0.813 1.8 5 420 Yes Push-pull •
TS391SOT23-5,DFN8 2x2
200 2 36 300 GND Open collector • ü
TS3011 SC70-5 470 2.2 5 8 Yes Push-pull •
TS3021 SC70-5 73 1.8 5 42 Yes Push-pull •
LM2903/1DFN8 2x2,QFN16 3x3
200 2 36 500 GND Open collector • •
LMV331 SC70-5 20 2.7 5 275 GND Open drain •
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.Note:*Newproducts
29
Part numberMax. operating
Temperature (°C)Typ. ICC per
channel (µA)Min.
vCC (v)Max.
vCC (v)Typ. response time (ns)
100 mv overdriveRail to rail In
Output type Single dual QuadAutomotive
grade
High temperature
TS3021H 150 73 1.8 5 42 Yes Push-pull • ü
LM2903H/1H 150 200 2 36 300 GND Open collector • • ü
Anynon-automotiveproductmaybeeligibleforAEC-Q100qualification.ContactSTSalesrepresentativeforadditionalinformation.
Propagation delay (HL) vs. overdrive at Vcc = 5 V, Vicm = Vcc
Propagation delay (LH) vs. overdrive at Vcc = 5 V, Vicm = 0 V
FEATuRES• Ultra-hightemperaturerange:-40to150°C
• Propagationdelay:38ns
• Lowcurrentconsumption:73µA
• Rail-to-railinput
• Push-pulloutput
• Supplyoperationfrom1.8to5V
• HighESDtolerance:5kV(HBM)and300V(MM)
• Latch-upimmunity:200mA
• SMDpackage
• AEC-Q100andQ003qualified
APPlICATIOnS• Automotive(gearbox,exhaust,enginecontrol,brakingsystem,…)
HIGH OPERATInG TEMPERATuRETS3021H: rail-to-rail 1.8 v high-speed comparator
TheTS3021Hsinglecomparatorfeatureshigh-speedresponsetimewithrail-to-railinputs.Withasupplyvoltagespecifiedfrom2to5V,thiscomparatorcanoperateoveranextendedtemperaturerangefrom-40to150°C.TheTS3021Hcomparatoroffers
micropowerconsumptionaslowasafewtensofmicroamperesthusprovidinganexcellentratioofpowerconsumptioncurrentversus38nsresponsetime.TheTS3021Hincludespush-pulloutputsandisavailableinthesmallSOT23-5package.
170
90100110120130140150160
80706050403020100
0 10 20Overdrive voltage (mV)
30 40 60 8050 70 90 100
T = 150 °C T = 125 °C T = 85 °C
T = 25 °C T = 0 °C T = -40 °C
High
to L
ow P
ropa
gatio
n De
lay
(ns)
170
90100110120130140150160
80706050403020100
0 10 20Overdrive voltage (mV)
30 40 60 8050 70 90 100
T = 150 °C T = 125 °C T = 85 °C
T = 25 °C T = 0 °C T = -40 °C
Low
to H
igh
Prop
agat
ion
Dela
y (n
s)
30
Signal conditioning for pyroelectric passive infrared sensors
APPlICATIOn nOTE An4368 SuMMARYIntroduction to pyroelectric passive infrared sensors
Pyroelectricpassiveinfrared(PIR)sensorsarefrequentlyusedinthecommonlife.Theyareakeycomponentinthemotiondetectionandcanbeusedforsecuritysystems,automaticdoorsorautomaticlight.Acommonapplicationisthehumandetection.Whensomeoneisdetectedinaspecifiedareaanactioncanbeperformedsuchasalarmtriggeringorroomlightingforexample.
How does the sensor work?
Thepassiveinfraredsensorscontaintwopartsthataresensitivetoinfrared.Ifbothpartsareseeingthesameamountofinfrared,thesensorwon’tdetectanything.But,ifoneofthesetwopartsisseeingmoreorlessinfraredthantheotherpart,theoutputofthesensorwillvary.Thefigure1showshowtheoutputvoltagevarieswhenaheatsourcegoesinoroutoftheareaprotectedbythesensor.
Sensor signal conditioning
Whenabodywithatemperaturedifferentthantheambientismovinginitsfieldofdetection,thePIRsensorisprovidingasmallACsignalwhichisintherangeof1mVpp.MoreoverthissmallvoltageisaroundaDCsignalthatmaysignificantlyvaryfromonesensortotheother.ThusitismandatorytocanceltheDCpartofthesignalandtoamplifyonlytheACpart.Asthissignalwillbedisturbedbytheenvironment,anoisefilteringwillalsobehelpful.Ifwewanttodetecthumanmotion,wehavetoconsiderfrequenciesfrom0.5Hzto5Hz.Inthisarticle,theamplificationandfilteringofthisfrequencyrangeisperformedthankstoTSU102,adualopamp.Schematicisshownonfigure2.TheACsignalgeneratedbythePIRsensorisamplifiedby69dB:35dBthankstothefirststageand34dBonthesecondone.Theop-ampGBPmustbebiggerthan2.7kHz(fmaxxgainx10=5x53x10=2.7kHz).Thefactor10hasbeentakenintoconsiderationinordertohavesomemarginandtobesurenottobelimitedbytheGBP.
AlmostallGBPamplifierswillfitthisGBPrequirement.Inaddition,sincetheDCiscancelledformotiondetection,theop-ampaccuracy,revealedthankstoVioparameter,hasnoimportance.Finally,ifwearedealingwithportableapplications,consumptionisakeyfeature.Especially,sincethiskindofapplicationis
suppliedduringallday.Theschematichasbeendesignedinordertooptimizeit.Here,themainconsumptionistheoneduetothesensor.Itconsumes19µA.Therestoftheapplicationconsumptionisequalto3.6µA:• 1.2µAfortheTSU102op-amps• 2.4µAduetothedividerbridgecomposedbyR6andR7
Conclusion
PassiveInfraRedsensorsarewidelyusedandrequiresomeop-ampstoamplifyandtofilterthesignaltheygeneratewhichisnoisyandhasaverysmallamplitude.ComparatorcanalsobeaddedtocomparetheamplifiedsignalwiththresholdvoltagesbeforegoingintoanI/Oofthemicrocontroller(noneedforADC).ThankstotheTSU102,youcandesignanapplicationcompliantwith3.3Vmicrocontrollerswithanoptimizedcurrentconsumption.For more details, please download An4368 document from www.st.com
C422 µF
R53.3 nF
d
sg
1 µF
22 nF
+
-
TSU102 #A
C2
22 µF 13 kΩ
C53.3 nF
R2
C3 47 nF
R1 680 kΩ
D1
VCC
Vcc
+
-
TSU102 #B13 kΩVout2
R6680 kΩ
R7680 kΩ
C610 nF
R4
C3 47 nF
R3 680 kΩ
VCC
Vcc
Figure1:principleofPIRsensor
Figure2:PIRschematics
31
Signal conditioning for shock sensors
APPlICATIOn nOTE An4708 SuMMARYIntroduction
Shocksensorsconsideredaspiezoelectricelementcanbeusedforawiderangeofapplications.Itislargelyusedintheconsumermarketasharddiskdriveprotection,butalsousedintheautomotiverangeforexampleforsecurity,whenwindowglassishitandbroken.Oritenablingintelligentpowermanagementtomaximizebatterylifefortirepressuremonitoringsystemmodulesintegratedintirevalves.
Charge amplifier configuration
Chargemodesensorsaretypicallyusedwhentheelectronicsareconnectedfarfromthesensor.Inthiscase,wecanusetheconfigurationshowninFigure1.Thechargeamplifierrequiresalowbiasinputcurrentasitdoesnotchargeanddischargethegaincapacitor,Cf,athighcurrents.Consequently,itisextremelyimportanttochooseaCMOSopampsuchastheTSX922whichpresentsaverylowinputcurrent,Iib,of10pA@25°C.Ifanychargecomingfromthepiezoelectricsensor"tries"tochargethecapacitanceofthesensor,thecable,ortheinputcapacitanceoftheamplifier,avoltageiscreatedbetweentheinputpinoftheamplifier.Astheamplifierhasaveryhighgain(90dB),thisvoltageisimmediatelynulledbysourcingorpullingthesameamountofchargethroughthefeedbackcapacitance,Cf,andtheresistance,Rf.Theinputcharge,Qs,isappliedtotheinvertinginputoftheamplifier.Itisdistributedtothecablecapacitance,Cc,theamplifierinputcapacitance,Cin,andthefeedbackcapacitor,Cf.
Qs=QCc+QCin+QCf(1)
ByconsideringthatQ=CVwecanwrite
Qs=Vin(Cc+Cin)+Vf.Cf(2)
WhereVinisthedifferentialVoltageoftheOpampandVftheVoltageinthefeedbackloop.Thankstothelargegainoftheopamp(AVD),andasVout=-Vfequation2canbesimplifiedasequation3:
Vout=- (3)—QsCf
Fromtheequation(3)wecanseethatchargeamplifiergainisindependentofinputcapacitance,thereforesystemsensitivityisunaffectedbychangesininput,cablelengthortype.
voltage amplifier configuration
Forthevoltagemodeamplifiertheinducedvoltageispresentedtothehighimpedancenoninvertinginputandthenamplifiedbytheopamp.Themainadvantageofthevoltagemodeconfigurationisthatthegainissetaccuratelywithresistorsratherthanwithasmallcapacitor.Theconfigurationisdescribedfigure2:Inafrequencyrange,allthecharges
generatedbythesensoraretransferredintoCsandCc.TheopampamplifiesthisvoltageasshowninEquation4.
Vout=- (4)———— (1+—)Qs RfCs+Cc Rg*
Asthegainisrelatedtotheamountofcapacitanceseenbythesensor,theshocksensormustbeconnectedascloseaspossibletotheopampinthisconfiguration.Thisisbecausetheparasiticcapacitanceofthecable,Cc,affectstheactualgain(andthelongerthecable,thehigherthiscapacitance).RensurethattheDCcorrectlybiasestheopamp.
Conclusion
PiezoelectricaccelerometerasshocksensorcanbeusedeitherwithachargemodeconfigurationthankstotheTSX922orvoltagemodeconfigurationthankstotheTSX712.For more details, please download An4708 document from www.st.com
+
-
TSX922
Vout
Cf
Vcc+
Rf
Vcc-
CinCcRsCs
Shock sensor
Qs
Figure1:ChargeModeamplifierconfiguration
+
-
TSX712
Vout
Cf
Vcc+
Rf
Vcc-
CinCcRsCs
Shock sensor
Qs
Rg
R
Figure2:Voltageamplifierconfiguration
32
Getthesuggestedschematicswithopamps,resistorsandcapacitors
Getthebillofmaterial
Getthegain,phaseandgroupdelaychartsofthefilterresponseinordertoanalyzeyourfiltereasily
SelecttheSignalConditioningmodule
Selectthetypeofproductfamily(activeanalog,comparatorsorlowsidecurrentsensing)
Selectthedesiredfilterperformance(lowpass/highpass/bandpass)
Adjustyourchoice(centerfrequency,bandwidth…)
THE SMART wAY TO dESIGn YOuR APPlICATIOnSTMicroelectronicseDesignSuiteisasmartsimulationtoolthatgreatlysimplifiesthetaskofengineersworkingonvariousapplicationtypes.TousetheeDesignSuiteyoumustfirstregisteronMySTathttps://my.st.com/analogsimulator.
eDesignSuite
STEP 1
STEP 2
STEP 3
STEP 4
…you can then
• Datasheet• Product folder
33
Hardware and software utilities
OP AMP nuClEO EXPAnSIOn BOARd
use the X-nuClEO-IKA01A1 multifunctional op amp expansion board for STM32 nucleo
Theboardcontainssevenpredefinedconfigurationsbasedonthreedifferentoperationalamplifiers.• ATSZ124forinstrumentationamplifiersandcurrentsensingconfigurations• ATSU104forawindowcomparatorfunctionorforphotodiodeorUVsensorconfigurations• ATSV734forLEDdriverandbufferconfigurations
Informationonhowtoobtaintheboardcanbefoundatwww.st.com/x-nucleounderthereferenceX-NUCLEO-IKA01A1.
STM32 dEvElOPMEnT SOFTwARE
use THE X-CuBE-AnAlOG1 multifunctional software expansion for STM32CuBE
TheX-CUBE-ANALOG1isanexpansionsoftwarepackageforSTM32Cube.ThesoftwarerunsontheSTM32microcontrollerandisusedforreadingandconfiguringvariousanalogfunctionssuchasinstrumentationamplifier,currentsensing,LEDdriver,photodiode/UVandwindowcomparatoroperationalamplifierdriversusingtheTSZ124,TSV734andTSU104devicesrunningonanSTM32microcontroller.ItiscompatiblewiththeX-NUCLEO-IKA01A1expansionboardpluggedtoaNUCLEO-F401RE,NUCLEO-F103RB,NUCLEO-L053R8orNUCLEO-L476RGboard.
The STM32 Open Development Environment is a fast and affordable way to develop and prototype innovative devices and applications with state-of-the-art ST components leveraging the STM32 32-bit microcontroller family and a comprehensive set of functions for sensing, connectivity, power, audio, motor control and more. The combination of a broad range of expandable boards based on leading-edge commercial products and modular software, from driver to application level, enables fast prototyping of ideas that can be smoothly transformed into final designs.
34
All THAT YOu nEEd
Multifunctional expansion board
Multifunctionalexpansionboardbasedonoperationalamplifiers
X-NUCLEO-IKA01A1
STM32 nucleo-64 development board
STM32F4MCU
NUCLEO-F401RE
Hardware Software(Free of charge)
Multifunctionalsoftware expansion X-CUBE-ANALOG1
STM32Cube
35
THE ST OP AMPS APP MAKES SElECTInG THE BEST COMPOnEnT FOR YOuR APPlICATIOn EASY!TheSTopampsappisavailablefreefromAppStoreandGooglePlaytohelpengineersdevelopcircuitsusingoperationalamplifiersandcomparatorswhicharefrequentlydesignedintoaudio,control,monitoring,automotiveandcommunicationsystems.
Withreferenceschematicsandguidesbuiltin,theSTopampsappprovidesanintuitive,mobiledesignassistantaccessibleatanytimeorplace.Itfeaturestouch-sensitivemenusandscrollablepagesforsimplenavigation.
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© STMicroelectronics - October 2016 - Printed in United Kingdom - All rights reservedThe STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies
All other names are the property of their respective owners
For more information on ST products and solutions, visit www.st.comOrder code: BROPAMPPERF1016