The output signal of AD8352 is distorted

AD8352 as the ADC driver.  then distorted by the differential sine wave passing through AD8352. The normal waveform in the figure is measured in the front end of the  AD8352. The distortion waveform was tested at the AD8352 output. The schematic is also shown.  Please help to see what problem caused, Thank you 

Parents Reply Children
No Data