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TLV6001最低输出电压疑问

Expert 1550 points

电路是差分放大电路

电源是3.3V,单电源供电。

电压检测

电流检测

输入浮空,输出浮空,测输出电压,大部分是0.22-0.18mV,但是也有一些是输出1.5mV,14mV,20.3mV。请问这是什么原因导致的?