ADS131M08: How to get rid of AC noise signal in ADS131M08?

Hello, I have used ADS131M08 to measure a battery's voltage. When I don't plug the battery into an external charging and discharging device, all the test results of ADS131M08 are normal.When I plug the battery into the external charging and discharging device, all the test results of the ADS131M08 become very bad, showing that a noticeable 50Hz AC signal is coupled in. Noted that I didn't charge or discharge the battery during the process. And I have used ADS1263, which have no such the obvious noise signal whether it is connected to the charging and discharging equipment. The measured voltage data of ADS131M08 is shown in Fig. How do I get rid of this noise signal in ADS131M08?

Lydia：

您好，

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

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Links：

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