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The transfer function of a SC integrator (Read 444 times)

eeBismarck New Member Offline Posts: 6	The transfer function of a SC integrator Jul 31^st, 2012, 8:53am Dear everyone, I am just starting to design the SC integrator. The one mentioned in the paper 'REDUCTION OF FINITE-GAIN EFFECT IN SWITCHED-CAPACITOR FILTERS' confused me as shown in the attachment. I use the charge conservation scheme, but the result is different from the eq.1 in the paper.
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buddypoor

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Bremen, Germany

Re: The transfer function of a SC integrator
Reply #1 - Aug 2^nd, 2012, 6:31am

I don't know how deep you are involved in S/C techniques.
Therefore, the following hints:
There are three basic types of S/C integrators:
1.) EULER-forward approximation
2.) EULER-backward approximatiuon
3.) BILINEAR approximation.

The S/C circuit as shown in the referenced document is a specific development to consider parasitic opamp properties.
Which type are you going to design?

LvW (buddypoor: In memory of the great late Buddy Rich)

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