AnsweredAssumed Answered

measure mems sensor's capacitance

Question asked by Mahdi000059 on Sep 16, 2014
Latest reply on Aug 3, 2016 by Mahdi000059

Hi,

 

I am currently working on a research and need to work with 12 capacitors. The capacitance is small (~[0,5]pf). They are capacitors with two electrodes. Can I measure this capacitance change using ad7147? I connected bottom electrode to CINx and top electrode to GND for this purpose.

Another question is about calibration of ad7147. I know there are registers for calibration purpose to remove drift and etc. but how should I apply it? I always encounter drift in the signal.

 

Thanks,

Mahdi

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