I am using AD5933EBZ for my project. I am currently trying to use the calibration resistance to measure for the response of the circuit. The parameters I have currently set are as follows:
Start Freq - End Freq: 30KHz - 50KHz. with 200Hz step.
MCLK : 16MHz
Range 1: 2V p-p
PGA gain : 1x
Rcal : 1.2K ohm ( according to the application note)
Rfb: 1.5K ohm ( according to the application note)
My gain factor calculation is 3.61E-5 and my impedance values measured are quite perfect for the Rcal. However my real and Imaginary values calculated are incredibly low as compared to what are said to be expected in other questions i read on this forum. I cannot understand why. Can someone help me understand them?
This is the sample data set that I have got. Similar values are for the rest of the data set. According to my calculations they are correct.