switched capacitor integrator

[crazyfox]

Hi :

I have a switched capacitor integrator, and i try to find the op-amp finite gain.

The one way is give a "dc" input, and check out the saturation output voltage.

(From the transfer function (z=1, DC), can get the finite gain of op-amp)

But, if the integrator is a "correlated double sampling" topology, which has

effectively doubled finite gain. (A-->A*A)

Can i use the same method ("dc" input), to check out the saturation output voltage ?

(Because i cannot get the right result from simulation)

Is any other ways can help me to see this effectively doubled finite gain from spice?

thanks

 

[safwatonline]

i think u should see it using the same methode