How to check stability of this loop?

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surianova

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Hi all,

I have a question how to check this CMFB loop?

1. is it the open loop gain (Vocm+ minus vocm-)/vicm?

2. How about phase margin, is it phase for Vocm+ minus phase for vocm- ?

3. Can break the loop at point A instead?


Thanks in advance..


Surianova
 

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