compensation circuit of OTA

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hi....

I am designing an OTA for low voltage specs.

And in the compensation circuit I am using a resistor and capacitor .

How the values of these components affect the game??

how i need to choose the values for these components??
 

Pls decide them by stability simulation.
 

r@m$ said:
hi....

I am designing an OTA for low voltage specs.

And in the compensation circuit I am using a resistor and capacitor .

How the values of these components affect the game??

how i need to choose the values for these components??
Click to expand...

if you are referring to a classical 2-stage opamp (diff-pair+common source output stage), then under some common assumptions (I think the output stage gain has to dominate):
- the compensation resistor has to be equal to 1/gm of the output stage,
- the capacitor can be chosen by sweeping it until the loop gain pole have split enough to ensure stability
 
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