how to simulate switched capacitor filter ?

[chichi]

i am new to switched cap filter stuff,i simulate a simple integrator circuit from internet,with a idea opamp,even though i always got a gain of like-50DB,did anyone have some experience in how to choose switch and control them in cadence? or something need to be pay attention to?

 

[dick_freebird]

Switched-capacitor circuits can't be simulated as small-
signal DC circuits. They need live clocks and transient
solutions. Though there have been tools that support
SC analysis by more behavioral approaches (get rid of the
need to solve every stinkin' clock edge and so on).

 

[chichi]

i have been using ac or xf simulation in cadence,so you think that's impossible?st least i got extremely wird results from it.