How to design this BUFFER ckt.

[engrvip]

How to source foll. BUFFER ckt. for CMOS CFA

I am in process of designing a CMOS CFA ( current feedback amplifier ). And this is one of the buffer ckt architectures I have found from technical papers by C. Toumazou.

But I am not able to DC bias this ckt to provide sufficient operating current. Can somebody explain its functioning and sizing (W/L) procedure ?

Thanks
Vipul

 

[crutschow]

What buffer circuit?

 

[engrvip]

Sorry for not attaching the image earlier....but now I have attached it in this thread.

This is the source follower ckt. used as voltage buffer in CFA ( current feedback amplifier) ?
I want to understand its functionality and also how much offset in voltage it will give at the output?