I am trying to decide what sort of op amp to use for an LED lighting project. It is a variable 6-12 Vdc to 3.5-0 Vdc very slow changing signal conversion (the 6-12 Vdc is an analog signal created by a temperature sensing device), so I have no bandwidth requirements, but the opamp needs to use +12Vdc/gnd as the supply voltages, and 12Vdc reference and input. They will be driving a 3.5 V forward voltage, 30 mA forward current LED. The response requirement is slow enough that I can use a second or third op amp in parallel to provide extra current capacity to drive the 30 mA LED at full on.
I'm limited at the moment to what I can pick up at radioshack or similar, LM741, LM324 quad, TL082/TL082CP dual, or LM339 quad comparator.
I'm limited at the moment to what I can pick up at radioshack or similar, LM741, LM324 quad, TL082/TL082CP dual, or LM339 quad comparator.