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我想将一个器件两端的压差取出来送AD读取，请问下，TI的差分放大器差分信号输入范围一般都是多大呢？
视产品而定。大多数产品，是电源电压＋－0.3V。
输入电压范围是和供电电压有关系的，您需要将什么样的差分电压读出来给AC采集？或者您看下我们差分放大器的选型链接，可以根据输入电压范围去进行筛选：
www.ti.com/.../products.html
