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ADS1x98ECG-FE Power-Supply Recommendations
49
SBAU171D–May 2010–Revised January 2016
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B.2 ADS1x98ECG-FE Power-Supply Recommendations
If you chose to power the MMB0 board through the wall adapter jack, it must comply with the following
requirements:
• Output voltage: 5.5 VDC to 15 VDC
• Maximum output current: 500 mA
• Output connector: barrel plug (positive center), 2.5-mm I.D. x 5.5-mm O.D. (9-mm insertion depth)
• Complies with applicable regional safety standards
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.
Figure 49. Recommended Power Supply for ADS1x98ECG-FE
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