As long as satisfying with the given specification, there is no other conditions to consider.
gingerjiang said:as you said, the first stage is a telescopic amplifier. i think the tail current of second stage is unnecassary. i don't know the use of the capacitor connecting the two outputs. this opamp gain is too much.
yonzzan said:
Can anyone explain how the second stage of this topollogy works? The first stage looks like a telescopic op amp but I am not sure about that as well. I have never seen this type of topollogy. I would also appreciate if you can let me know any text book covers this topology.
With much appreciation
Added after 50 seconds:
also, I was wondering how size of transistor effects speed of op-amp such as GBW.
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