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ADS8684 输入通道直流偏置如何解决?

Other Parts Discussed in Thread: ADS8684

我们设计的硬件上,ADS8684的4个输入通道都存在一个1V的直流偏置,

如果把4个输入通道的串联电阻R632~R635都卸掉,那么8684输入引脚上的直流偏置就变为2V了。

对于具有双极性输入的ADS8684而言,我们希望其输入引脚上不存在任何直流偏置的,这个问题该如何解决?