Voltage to current converter

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Thread Starter

Art Peipher

I have a project going and need a circuit for a decent voltage to milliamp converter. Because of what we are doing I have to do it the old fashoned way, build it by hand. The few circuits I have dug up have either too high of a component count or are unstable in the application.

specifications would be 1-5 volts in, 4-20ma out with zero and span if possible, linearity - .5% or better. Supply voltage of either 12 or 24 volts.

If you have a circuit or can point me in the appropriate direction it would be greatly appreciated.

Art Peipher
City of Miramar,
Florida
[email protected]
 
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Todd Sanders

There is a company in Lancaster SC Carotron Inc. that sells a very nice signal follower card Model C10032-00 that will take a 0-10, 0-100VDC, 1-5ma-4-20ma inputs positive or negitave, and outputs 1-10VDC or 4-20mA into 500 Ohms max. List price is $122.00. I have a schematic of this card and if you would like it I will email it to you. Just let me Know and give me a day or two.
 
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Ing.Sergio Toledano

If you are interested in the circuit I have a design with one Operational Amplifier and two low power transistors, with sourcing or draining output, as you wish, please send me a e-mail at [email protected]. The designs are in Orcad or autocad .DXF. best regards Ing.Sergio Toledano System Specialist Sucromer S.A. de C.V.
 
I have a voltage outputing DAC and want to convert it to a current source. I would love a copy of your schematic. Both Orcad and DXF would be great. Thanks.
 
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Kevin Sullivan

Hi, I just did a search and found this on the web and your reply. I could use the schematic
right now.

Thanks, Kevin Sullivan
 
P
Hi!
Can you send the schema to me also?

Kind Regards
Per Holmberg (per.holmberg @partekforest.com)

 
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specifications would be 1-5 volts in, 4-20ma out with zero and span if possible, linearity - .5% or better. Supply voltage of either 12 or
24 volts.

If you have a circuit or can point me in the appropriate direction it would be greatly appreciated.

Art Peipher
City of Miramar,
Florida
[email protected]
 
A
specifications would be 1-5 volts in, 4-20ma out with zero and span if possible, linearity - .5% or better. Supply voltage of either 12 or
24 volts.

If you have a circuit or can point me in the appropriate direction it would be greatly appreciated.

Art Peipher
City of Miramar,
Florida
AHP[email protected]
 
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