**Category:**Datasheet/Specs

**Product Number:**AD 5933

Hi to everyone.

I have two questions.

I am using AD 5933 evaluation board to measure the impedance of my design

1). I want to measure the impedance of my design which is around 26MΩ. When I calibrated the AD 5933 by using a 15MΩ resistor, I measured the impedance of a pure resistor of 17.78 MΩ. Although this is beyond the range of this device ( Mx limit 10MΩ)

I don't have any resistor of rating 25MΩ to calibrate the device, Can anybody tell me, if I calibrate the device with a 25MΩ resistor and then measure the impedance of the device that is around 26MΩ without swiping the frequency, as frequency sweeping gave the wrong results as compared to the constant frequency. usage. Will I get the correct result?

2) Can I use the constant frequency of around 1MHz for my impedance measurement ( accurate result limit: 100KHz). I will not sweep the frequency, but use the constant value, would it give the correct results or not?

Kindly experienced person guide me.

Thanks in advance

Best Regards