I'm seeking a solution how to do a two point scaling in electronics. I have tried an Op-amp, but it did not work very well. So I wonder if you have some ideas how to do two point scaling from e.g 0.6 V – 3.2 V to 0.0 V – 3.3 V?
When I apply 4 mA, I what the output to be 0.0 V or very close to 0.0 V.
When I apply 20 mA, I want the output to be 3.3 V or very close to 3.3 V.
The Zener below is a 3.6 V Zener.
Is that possible?