Operational Amplifiers

AC Power

CHAPTER

8

Figure 8.2, 8.3

8-1

A voltage amplifierFigure 8.2

Simple voltage amplifier modelFigure 8.3

Figure 8.4

8-2

Operational amplifier model symbols, and circuit diagramFigure 8.4

Figure 8.5

8-3

Inverting amplifierFigure 8.5

Figure 8.7

8-4

Summing amplifierFigure 8.7

Figure

8.8, 8.9

8-5

Noninverting amplifierFigure 8.8

Voltage followerFigure 8.9

Figure 8.10

8-6

Differential amplifierFigure 8.10

Figure 8.14, 8.15

8-7

Instrumentation amplifierFigure 8.14

Input (a) and output (b) stages of Instrumentation amplifier

Figure 8.15

Figure 8.20

8-8

Op-amp circuits employing complex impedancesFigure 8.20

Figure 8.21, 8.23

8-9

Active low-pass filterFigure 8.21

Normalized response of active low-pass filterFigure 8.23

Figure 8.24, 8.25

8-10

Active high-pass filterFigure 8.24

Normalized response of active high-pass filterFigure 8.25

Figure 8.26, 8.27

8-11

Active bandpass filterFigure 8.26

Normalized amplitude response of active bandpass filterFigure 8.27

Figure 8.30

8-12

Op-amp integratorFigure 8.30

Figure 8.35

8-13

Op-amp differentiatorFigure 8.35

Figure 8.36

8-14

Elements of the analog computerFigure 8.36

Model of automobile suspension

Figure 8.38, 8.39

8-15

Solution by repeated integration

Analog computer simulation of suspension systemFigure 8.39

Figure 8.38

Figure 8.42, 8.43

8-16

Figure 8.42 Op-amp output with voltage supply limit

Figure 8.43

Figure 8.45, 8.46

8-17

Open-loop gain of practical op-ampFigure 8.45

Figure 8.46

Bandwidth of a cascade amplifier:

Bandwidth of a single-stage amplifier:

Method of increasing bandwidth by means of amplifiers in cascade

Figure 8.48, 8.49

8-18

Op-amp input offset voltageFigure 8.48

Figure 8.49

Figure 8.52, 8.53

8-19

Slew rate limit in op-amps

The maximum slope of a sinusoidal signal varies with the signal frequencyFigure 8.53

Figure 8.52

Figure 8.55, 8.56

8-20

Figure 8.55 Distortion introduced by short-circuit current limit

Figure 8.56

Common-Mode Rejection Ratio (CMRR)