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ADS1100是否需要将补码转换为原码?还是直接套用公式!怎么求实际的电压值??

Other Parts Discussed in Thread: ADS1100

ADS1100是否需要将补码转换为原码?还是直接套用公式!怎么求实际的电压值??

  • 你好,

    ADS1100是以输出是二进制补码的方式输出,根据你的速率不同,输出的数据位数介于12到16位之间。输出是右对齐的,最高位是符号位。

    计算实际电压值的时候,需要将补码转成源原码,然后根据你的配置(数据速率,PGA设置)对应以下公式即可求解:

     (截图来自数据手册第6页)