Re: current source



Are you trying to say that at 0 volts input you will have 4 mA output and at
20 volts input you will have 20 mA output? To what accuracy?

Jim




"naser" <naser.yousofi@xxxxxxxxx> wrote in message
news:1153168391.045620.220130@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
HI
i want to desighn a current source to convert 0-20v/dc to 4-20ma.
and i tried to do this by current miror circuits but i had a problem
with unstable
the current ...
can any one guide me?
how i can do this work?
thank you



.