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ADS1255单端输入电压范围

user6216108
Prodigy 60 points
Other Parts Discussed in Thread: ADS1255

ADS1255参考电压为2.5V，AINCOM接AGND，Positive Input Channel (AINP) 选择 了AIN0，Negative Input Channel (AINN)选择AINCOM，实测AIN0输入到3.8V以上AD值转换成电压值就对应不上了，为什么会这样子？文档不上说单端输入电压范围为0~5V。