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诸位如图所示，两路A,B信号需要放大十万倍，所以在1.2口和12.14口接入电阻10K欧姆。可是最近测量电路时候，A.B信号并无输入，却有A.B大小均为2.4V的输出，这样的错误输出是什么原因啊，各位大神能否教教我。。。问题出在了哪里。
建议您将+INC -INC +INB -INB悬空试试。
