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feedback functions of the four feedback configs

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wholx

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anyone has a good way to remember the feedback functions? for instance, any reason that fb of a series-shunt is Vfb/Vo, rather than Vfb/Io?

thx
 

Look at what is being sampled. This is the parameter that is being held constant.
 

Refer to Razavi's book. It's explained there very clearly
 

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    wholx

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thx for both of your helps, very useful
 

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