SBAU171D May 2010 – January 2016 ADS1198 , ADS1298
If you chose to power the MMB0 board through the wall adapter jack, it must comply with the following requirements:
Figure 49 shows a +6V power-supply cable (not provided in the EVM kit) connected to a battery pack with four 1.5V batteries connected in series. Connecting to a wall-powered source makes the ADS1x98ECG-FE more susceptible to 50Hz/60Hz noise pickup; therefore, for best performance, it is recommended to power the ADS1x98ECG-FE with a battery source. This configuration minimizes the amount of noise pickup seen at the digitized output of the ADS1298.