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ADS1271要求差分信号输入，在AD的内部实质上是两个输入端的信号相减（AINP-AINN）吧，那如果我直接向AINP输入2.5V，AINN输入偏置在2.5V的信号，两端相减也就相当于去除了2.5V得到了信号，这样做可以吗？会不会影响信号质量啊？？希望大神们指导，不胜感激！！
没问题。只要输入信号范围在线性范围内即可。
对 输入在供电范围内就可以
你好，输入信号既要满足供电范围的要求，也要满足共模电压的输入要求（VCM）
