Hallo, may I connect 4-20ma signals directly to a multiplexer?
Many Thanks Marco
Multiplexer with 4-20ma inputs
Jul 25, 2006
5 Replies
Yes you may.
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More detail, please.
The general answer is no. 4-20mA (current loop) signals and logic devices (assuming that's what you mean by "multiplexer") cannot be directly connected to one another. (Current loop is an analog, current-driven system, while most logic is based on a digital voltage-driven system.)
The question as it stands makes little sense.
Steve
formatting link
system,
There are analog multiplexers including single chip devices. Wether they are good for 20 mA, well...
Peter
Marco:-
Please do *not* multi-post. If you must post the same question to multiple appropriate newsgroups, please crosspost so that you don't waste everyone's time. There are a number of answers already in sci.electronics.design.
Best regards, Spehro Pefhany
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You are right. Sorry.
Marco
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