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AD5933:  Why is pure resistor impedance measurement showing a frequency response?

Question asked by ryan.holman@ucsf.edu on May 11, 2017
Latest reply on May 13, 2017 by Snorlax

I have tried a couple of different resistors and ad 5933 chips for performing a frequency sweep.  I am attempting to calibrate the code using a pure resistor from a range of 10 kHz to 100 kHz.  However, the returned resistance values are becoming significantly less as frequency increases.  Any ideas why this may happen?

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