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INA116的使用



大家好,我看说明书上116PA的最低电源是+-4.5V,我用+-5v按照说明书上测量PH电极的接法在面包板上搭了一个测PH的电路,可不管怎么输入信号,怎么调节增益电阻,11脚输出始终都是mv级的乱调,望大家帮我分析一下,我哪里接的有问题?谢谢大家