Hi all.
I need Op-amp to be a current source of around 1ma-20mA. from the net found some LMC6462, unfortunately i do not have the parts, any possible replacement?
also if it will be digitally controlled, any basic suggestion on how to do this? maybe PWM?
Assuming you don't need any significant speed, any unity gain stable rail-rail opamp should do. Just vary the input voltage with a DAC to set the current.
tested on 324 and works just needed thanks i was just wondering as LMC6462 feature include current source, which i was thinking it was ideal to use, and replacement on it would be best to use, but with my simple application 324 is ok