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关于初次INA214电流检测芯片的问题

采样电阻是10r(这个值对电路整体没影响),布线用的说明手册中的基本电路,参考电压接地,我用示波器测了一下输出端,为什么是个正弦波,峰值在2v,这跟我需要得到的电压是一样的值,是不是哪里干扰到它了?求大神回复一下,十分感谢!

附件是我的布线图