>How about this: > >3-30V ---+-R1-+-->AN0 > | | > | R2 > | | > | * >This may work if the impedance of 3-30V output is low enough. It should be fine - it's a NiCd battery pack. I was trying to cut down the parts count - it has to fit on a 1.2x1.3 board with lots of other stuff. Thanks - I'll think on this method more. Andy ================================================================== Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA ==================================================================