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Thanks srivatsan,
but this works only for a few circuits. In all the other circuits i am getting gmin errors......
Plz do tell me what's wrong. without the changes which u said i dont get any gmin errors in these circuits and they work fine.
thanks once again.
The above mentioned methods are incomplet. Two terms of CMRR exist: systematic and random. To simulate random CMRR you must perform Monte Carlo analysis as random CMRR arises from mismatches between signal paths in your amplifier.
This is a very common "newby error". When you simulate the CMRR of an amplifier without considering the mismatch effect, it is common to obtain CMRRs of more than 90dB. Now, when you add mismatch, the CMRR substantially decreases.
The above mentioned methods are incomplet. Two terms of CMRR exist: systematic and random. To simulate random CMRR you must perform Monte Carlo analysis as random CMRR arises from mismatches between signal paths in your amplifier.
This is a very common "newby error". When you simulate the CMRR of an amplifier without considering the mismatch effect, it is common to obtain CMRRs of more than 90dB. Now, when you add mismatch, the CMRR substantially decreases.
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