Forum Post: RE: ADS131E08EVM-PDK: Not able to see correct ADC input on ADS131e08 EVM software scope

Hi Joseph, Yes we checked the analog input on oscilloscope also. In our case our AVDD is 2.5V and AVSS is -2.5V so ideally Common mode voltage should be zero , am I correct or wrong? And we are giving 50 mVpp input the through Function generator to Channel 1 on the kit and we are getting following waveforms: Can you please tell us Exactly which type of waveform we should get Square wave or Sign wave? regards, Tejaswini