2 Stage fully differential opamp with Common Mode Feedback

Design Review3-31-11Yuan JiCurtis MayberryTwo Stage fully differential opamp with Common Mode FeedbackDesign Schematic

Bias Circuit for First Stage

Bias Circuit for First Stage(Continued)

Bias Circuit for Second Stage

Push the Zero to LHP

CMFB

CMFB

First Stage

ResultsPerformancePowerCurrentPerformance

Gain and Phase Bode Plots and GB product

Slew Rate +

Slew Rate -

CMRR-Common Mode Gain

Linear Output Swing Range

ICMR

Overshoot

Settling Time

CMFB Loop Stability