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op amp design HELP
second stage use cascode can increase the PSRR and
gain . the over drive voltage you can use 0.2v.
you should use miller cap compensation between first stage and second stage to improve the phase margin.
you work current should meet the slew rate(where is you load...
folded cascade amplifier
advantage
1.seperate the ICMR and outputswing
2.high Gm without high power disspate
3.low noise
disadvantage
1.low speed
2.high powerdisspate
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