ADS8688A: ADC input is single ended signal or Differential signal

Hello,

ADS8688A will work well with your input signal.

ADS8688A features a pseudo-differential type input structure which means that the AIN_xP is driven by a single-ended signal and AIN_xN is connected to a signal that must be within +/-100mV of the AGND voltage applied to the ADS8688. 

For more information on ADC input structure types, take a look a look at the following video:

https://training.ti.com/ti-precision-labs-adcs-sar-adc-input-types?context=1139747-1140267-1128375-1139103-1128659