Hello, I am a researcher at Seoul Asan Medical Center in Korea.
I am currently making impedance kits using AFE4300 chips.
But I have a problem.
At first, the AFE4300 board was used for operation.
When tried using reference resistance as shown in user-guide in the past, the value came out normally.
And then, I have formed a new PCB using AFE4300 chip.
Similarly, circuits were constructed using known resistors and capacitors.
When making measurements, the measurements were programmed to be repeated in order of 8k - 16k - 32k - 64k - FWR every 0.5s.
However, the value is output unstable at 64 kHz.
Can you tell why?
I will attach a code if necessary.
Thank you for reading.