vivkr
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Hi Tosei,
It seems to only be the differential output. Unfortunately, I cannot post a drawing on my circuit because I would get into trouble if I did that. However, I can describe the architecture.
2-stages, first stage with NMOS input, NMOS cascode. Compensation cap returns to cascode node. Switched-cap CMFB for both stages separately so that compensation is simpler. This scheme has been around in many different forms, and although I have added a CMFB in each stage, I believe that people have also done this.
I will see if I can find out something from my side.
Regards Vivek
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