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ADS1254-EP差分输入问题讨论

Other Parts Discussed in Thread: ADS1254, THS4531, ADS1211

在资料上看,只支持差分输入,我只有单端信号输入,我可以把负输入接地吗?如何可以,负接地以后,输入单端信号假设是+1.5V  那最后转化成数字信号后是什么值?

ref=3V