Hello TI Experts，
I am using AFE5805A to do Ultrasonic analog front-end signal processing.
I find that the static noise between channels is quite different~
Test conditions:HDL6M05585 keeps the input state all the time,128 ultrasonic input channels all to ground,
ADC sample clock 50MHz，FPGA does sample acquisiation to 0-63 channels，then use Matlab to analyze the data
Question:The input is all to ground,why there's such a big difference in the two sampling value of ADC?
Such as the pictures below:
Picture1:0-63 channels ,static noise,rms value (ADC)
Picture2:0-63 channels,static noise,Parallel display in time domain,
Picture3: 55th channel amplification
Picture4: 0th channel amplification
Hope for your reply,thank you very much~
