> Look on the manufacturer's websites for "High Side Current Sense > Amplifiers" or "Current Monitor" amplifiers. >=20 Matt beat me to it, as he says there are a lot around now, beyond the ones = I have mentioned. --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .