On 3/31/07, James Nick Sears wrote: > Thanks for the reply. So the correct approach is simply to calculate > the maximum resistance that leaves 7V at the input with the minimum > supply voltage and the maximum current being drawn by the IC? Sure. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist