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INA226空载异常问题

Other Parts Discussed in Thread: INA226

使用INA226做微安级电流检测,使用低端检测,在接负载时测量正常,而在空载时(断开负载,IN+悬空,IN-接GND)出现异常测量,异常测量值为6.55mV左右,四路测量中两路出现这样的异常;

请问INA226是没有办法测量空载电流吗,谢谢!