buffer circuit needed to substitute the ideal one

[jimito13]

buffer circuit needed

Hi,

I want to substitute my ideal buffers (vcvs with infinite input impedance and gain=1) in a circuit that i have with real buffers.My first thought is to use common drain topology for this purpose but i do not want to shift my dc operating point.Does anybody have any suggestion for my problem?

I would appreciate any helpful answer.Thanks in advance.

 

[love_analog]

put an opamp with unity gain feedback. Or else put a nmos source follower followed by a pmos source follower.