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

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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
 

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

Jiang
 

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

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
 

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