alexyangfox
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I saw this circuit in Razavi's book ——"Design of Analog CMOS integrated Circuits"
I don't understand his analysis.
the book says
the gain is:
It seems when considering the Small signal model
the Dependent Current Sourse is gone.
I think it should be like this:
Say , a quarter of the book's answer.
Could anyone help me with this puzzle?
Why is the dependent Source gone?
Or I made a mistake?
Thank all of you in advance!
best wishes to all guys here.
sincerly,
alex.