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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/599680/the-output-of-ad8237-has-the-disturb-of-50hz-when-no-difference-signal-input
但是 、当差分信号输入被施加到 AD8237的引脚2和3上时、这是 ok 的
