how to simulation the performance of a auto-zero circuit?

[paley]

when design a auto-zero circuit, I don't know how to simulation the performance, and how to choose the cap's value, is there some way to complete it?

 

[paley]

please help me, thanks

 

[safwatonline]

what tool are u using ?

 

[paley]

Re: how to simulation the performance of a auto-zero circuit

Hspice and Spectre

 

[safwatonline]

well, if u r using only spectre (no spectre RF) then can put sin source representing noise signal and do transient analysis and examine the noise at the output (of course this can be done also with the dc offset).
if u have access to spectre RF u can do PSS then PNOISE , and see the contribution of noise at the output.

 

[paley]

if i used hspice, how to simulation?
thanks

 

[mists]

maybe hspicerf can.