SBAU171D May 2010 – January 2016 ADS1198 , ADS1298
Arbitrary input signals can be connected to the ADS1298 by bypassing the DB15 connector and feeding the signal directly at jumpers JP26-JP33. This requires the removal of the 16 jumpers at JP26-JP33. The input signal must be connected differentially since each ADC channel input is differential. If it is desired to connect single-ended signals, bias the negative input of the channels to a mid-supply voltage.
NOTE
Ensure that the single-ended signal has an offset equal to the voltage supplied at the negative input of the channel.