I am generating a 0-5V signal from a PWM and need to convert it to 4 to 20mA, I tried a few circuits that I found online but it does seem to work as I thought it would. These circuits generally give 0 to 20ma output.
What I was looking for is 4mA for 0V input and 20mA for 5V input.
What I was looking for is 4mA for 0V input and 20mA for 5V input.