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ads1211参考电压问题



如果我用REFout和REFin连在一起,那参考电压应该是2.5V,如果我的差分输入是2.5V(是0x7FFFFF除以2么?),,那采样值是多少呢?如过差分输入是5V(是0x7FFFFF么?),那采样结果是多少呢?

是怎么计算的?有公式么?