Hi Chris, Sorry for the delayed response. The scope capture was battery voltage and 3.3V rail We had probed the 5V rail and did not see the dip on the rail. Hence it is not the ADS1256 which is creating the problem or might be (because it happens when there is a channel change). Now we are looking at TPS63020 to check why the behavior is so. Currently have isolated the supply to Main board and TPS63020 by a diode, we are testing the configuration to check the performance. Please note my email id: murugavelu.t@innowire.in, kindly ping on the same will share the schematics. As the project is live and confidential would not be able to share the details on the open forum. Regards, Muruga
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