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AMC1301: 关于AMC1301输入端口的问题

Part Number: AMC1301

我想请教一下关于AMC1301输入端口的问题,通过查看数据手册,输入端口电压范围是±250mv,我所做的设计需要进行母线电压采样,我给的电压是60V,经过分压后得到的电压是250mv,但是与AMC1301VINP连接后,电压就不是250mv了,这是什么原因,谢谢。