I2V Converter Circuit

[ecaits]

Dear All,

I want to use I2V converter circuit which will convert 4-20 mA to 0-5VDC.
I dont want to use 250 ohm resistor which convert 4-20mA to 1-5VDC....

Plz suggest me any I2V converter circuit which can convert 4-20mA to 0-5VDC exact...

 

[be80be]

You are wanting to read a 12 volt current loops 4-20 mA loop I take it.

The 250 ohm resistor is a stunt you read the voltage across it to get the current readings.
You have to use some kind of stunt to take a reading so why not a 250 ohm?

 

[JonSea]

I think I2V is " current to voltage" converter. I think the poster is objecting to the fact that a 4-20mA current loop will yield 1 volt at 4mA instead of 0 volts.

The convenience of a 0 – 5 volt signal instead of a 1 – 5 volt signal requires a lot more complexity than a simple resistor.

TI makes some current loop converters that provide the option of a 0-5v output.

 

[Mosaic]

Won't an instrumentation grade difference amp with a 4mA ref and appropriate gain scaling work? Perhaps an AD8221?

https://www.analog.com/static/imported-files/design_handbooks/5812756674312778737Complete_In_Amp.pdf

 

[misterT]

Google imagesearch "4-20ma converter 0-5v" brings up many circuits. Including this thread: https://www.electro-tech-online.com/threads/0-10v-4-20ma-conversion-to-0-5v.17420/