Can anyone suggest a stable, simple 12v>5v voltage regulator circuit.
Currently I am leaning towards simply a LM317 with precision resistors. I am uncertain of the temperature stability of this and would like to lock it to the 4.096v voltage reference I am using as reference for ADC and thermistors.
I am anticipating that the 12v in will not be particularly stable, it will probably be powered from a hard drive connector initially. Any thoughts on whether power supply stability is even necessary in this case.
The whole
circuit is based heavily on
this but with a higher end analog side. I am intending to use the same software or a variant.
dnkroz, Deadeye, a belated thanks for your inputs, this thread dropped off my radar over the holidays.
I have decided not to use instrumentation amps at this point, the accuracy I can reasonably expect is going to make the 0.025 deg C resolution I am expecting quite adequate.