How to simulate ICMR of comparator?

[holddreams]

icmr of comparator

How to simulate ICMR of comparator?

Just like to simulate ICMR of opamp with the negative input connected to output ?

 

[sunking]

icmr comparator

it depond on the kind of comparator.
if the comparator is like a opa, then just like to simulate ICMR of opamp with the negative input connected to output.

 

[holddreams]

i use a folded-cascod opamp following with a open drain Nmos ,
Is it right to use unity-gain mode to simulate the ICMR?

THANKS.

 

[sunking]

make sure the input stage in saturation state