1 ~ 5 V / 4 ~ 20 mA isolation converter circuit composed of the 3656 isolated amplifier

Published:2011/8/16 2:31:00 Author:Rebekka | Keyword: isolated amplifier , isolation converter | From:SeekIC

In the industrial real-time control system, in order to realize the long distance transmission signal, itoften needs to standard voltage signal 1 ~ 5 V switching for standard 4 to 20 mA current signal, because transmission current signal transmission loss is small, the low electromagnetic interference is low, it is also easy to identify, power lost or failure of open. Here 4 mA means zero level, 20 mA means the maximum signal. The figure shows the 1 ~ 5 V / 4 ~ 20 mA isolation converter composed of the 3656 isolated amplifier. Figure (b)shows 3656 internal structure.



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