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INA116

Other Parts Discussed in Thread: INA116

 PH电极的输出范围在-0.413v~+0.413v之间,假如我的PH电极测的电压值是IN-大于IN+,那么我的输出信号也会有一个负值,单片机的AD检测是读取不了负值的,怎样解决此问题?