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看了ADS7945/7946介绍可以采集±5V的差分信号，现在有一个单端信号，信号幅度在±5V之间，幅度可以通过运算放大器调节，现在想用ADS7945/7946采集，但是看介绍都是输入时正信号，请问我这个信号需要怎么处理一下，才能满足ADS7945/7946的输入要求呢？谢谢
