> > > Or if you really wanted to give yourself a bit extra resolution then > > plan on being able to reduce the Vref+ to 2.5V. At least build in the > > pads that would allow a TO92 reference to be fitted later to do this as > > someone will sure as eggs want better resolution :)) Yes, pads built in. Not just for vref component, but also for op-amps, cause these will allow me extra A/D inputs. I'm monitoring current into a ckt, so I intended to connect both sides of the shunt resistor to separate A/D inputs and calc the diff there. Later, I'll add op amps if I feel it necessary. > Or if you can live with the accuracy, two resistors and a capacitor to > divide the 5V to make the 2.5V reference. At this point I'm going to divide by 5 for the vref using 3 R's instead of just dividing by 2. So 1V ref should give me better resolution. Thanks, -Neil. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu