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ADS1216 双极性测试问题

Other Parts Discussed in Thread: ADS1216

hi all,

我现在用ADS1216测量双极性的电压 ,只使用Ain0脚作为单级输入,电压范围±2.5V,按照规格书设置,但是测试范围还是0`2.5V.

设置配置如下:

MUX:0E

DEC0: FF

M/DEC1:31

其他默认,请问是否有什么问题

谢谢