V/I or I/V CONVERTER
V/I or I/V CONVERTER
(OP)
Dear People, i am looking for a good circuit to do a V/I converter, to get a 0-5 Voltios DC from a 4-20 mA. If you have any suggestion, please sent me any information about that.
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RE: V/I or I/V CONVERTER
TTFN
RE: V/I or I/V CONVERTER
RE: V/I or I/V CONVERTER
How about a schottky diode?
RE: V/I or I/V CONVERTER
4mA X 250 ohms = 1 volt
20mA X 250 ohm = 5 volts
Now to get 0-5 volts, first add -1 volts and then apply gain of 1.25.
See Art of Electronics or any good op amp text.
RE: V/I or I/V CONVERTER
unfortunately I mis-read the requirement as 0.5V, not 0V to 5V. A schottky diode would have worked well for that! Sorry :-(