Ravinder487
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Oh good! It's your lucky day then ;pyeah I tried it and I got gain as expected!!
Oh good! It's your lucky day then ;p
If you look at your output stage, have you ever wondered who controls your output current?
Basically, both the PMOS and NMOS current mirrors are trying to force a current at the output.
Device mismatch, short channel, systematic offset, channel length modulation, just some of the long list of possible causes for a current mismatch.
If you have a low gain, you may be lucky to remain in saturation, or even luckier if both try to force the exact same current.
Otherwise, what you'll see is that one of the mirrors will "win" and push the other into the linear region.
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