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差分信号,电气隔离处理

Other Parts Discussed in Thread: ISO124, LM5017, AMC1200

你好!最近碰见一个问题。一组±75VDC的查分信号,我考虑使用±10VDC的板卡采集,板卡采样率1MHz/s。考虑用电阻分压衰减,但是不知道如何做到电气隔离。差分信号的带宽,暂时可以不考虑

另外,还有一个±1VDC的差分毫伏信号,考虑放大后采集。问题也是如何电气隔离,不影响信号带宽?