Sid
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Hi,
A psedo differential amp basically does not have a bottom current source. Is this correct?
If I am correct, then it should not really affect your gain-BW-power trade-off. It will affect only your output swing and CMRR. If you have some kind of fast settling CMFB (common-mode feedback), then I think you can have "reasonable" CMRR and get away without problems in your pseudo differential amplifier.
Hope this helps. -Sid
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