how to simulate SC filters in P$P*ICE?

[2000]

hello,

Does anybody knows how to simulate this switched capacitor filters in OR$C*AD P*SP&*ICE? Is there any kind of switch that can be controlled by a phased signal and really works?
and how to implement an ideal OPAMP? any ready models?

regards,
2000

 

[novell]

becuase SW is not linear. you can't simulate SW directly. But you can use transmission line instead, which could simulate the delay.

Jiang

 

[Hughes]

You can use vcvs to implement an (almost) ideal opamp.

 

[ynhe]

z-domain models

Hi
The z-domain models will allow you to both analyze more complex switched capacitor circuits and to perform frequency domain simulation using SPICE-type simulators.
See the Allen and Holberg's booK"CMOS Analog Circuit Design" for details
or login www.intusoft.com for some paper for sc spice model.

ynhe