另一方面，为了兼容其他那些工作输入信号电压不为0的器件，如模数-数模转换器，信号电平也许要做平移。

On the other hand, the signal may require level shifting in order to be compatible with the input of other devices (such as ADCs) that are not designed to operate at 0v input.

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任一变化在励磁电压的结果是由模数转换器在模拟输入电压。

Any change in the excitation voltage results is a change in the analog input voltage seen by the ADC.

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就模拟输入而言，使模数转换器不能区别其变化的超范围的绝对电压值。超载值对于正输入和负输入可能不同。

For analog inputs, any absolute voltage value above which the analog-to - digital converter cannot distinguish a change. The overload value can be different for plus and minus inputs.

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