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Bipolar version Positive amplifier Negative amplifier 1 st and 2 nd stages are identical
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CARIOCA - prototype 8CARIOCA - prototype 8
One chip for next One chip for next submission : submission : September 13September 13th th 20022002
Modification on Modification on positivepositive and and negativenegative versionsversions
BipolarBipolar version version
With analog buffer for With analog buffer for probingprobing
positive
negative
negative
positive
bipolar
bipolar
prototype 8
Bipolar versionBipolar version
Bipolar Channel
prototype 8
positive
negative
negative
positive
bipolar
bipolar
positive negative bipolar
switch
negative
positive
Bipolar versionBipolar version
Positive amplifierPositive amplifier Negative amplifierNegative amplifier
1st and 2nd stages are identical
Bipolar versionBipolar version
Positive amplifierPositive amplifier Negative amplifierNegative amplifier
Feedback and last stage can be switched off…
Bipolar versionBipolar version
Positive amplifierPositive amplifier Negative amplifierNegative amplifier
Acting on gate bias and using basic inverter
switchgate bias
bias
Bipolar versionBipolar version it is much worst
w.r.t. note LHCb-2002-40
Bipolar amplifierBipolar amplifier
negative
positive
switch
Bipolar versionBipolar version
Bipolar channelBipolar channel
bipolar
switch = 0 or 2.5 V
negative
positive
Positive signal
Negative signal
Bipolar versionBipolar version
Analog pads for probingAnalog pads for probing
