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Subject: Re: Simple amplifier

Date: 06/16/03 at 10:31 AM
Posted by: pradeep
E-mail: pgarg0@engr.uky.edu
Message Posted:

In Reply to: Re: Simple amplifier posted by Russ Kincaid on 06/15/03 at 9:53 PM:

Thanks for reply.
I understand that source resistor will increase the O/P impedance

What about the feedback :
For example, I am connecting source of mp2 to gate of mp1
but how it will increase the o/p resistance of mp2.
mp1 d1 g1 0 0 nshort l=0.10 w=10
mp2 d2 d1 g1 0 nshort l=0.10 w=1000
R1 g1 0 100

This is the main idea that we use in gain boosting of opamp without any cascode structure.
Please exlapin, I am not clear here.

thanks
pradeep


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