> I would like to know what is the minimal useable voltage on vref+? I don't know, but isn't this in the data sheet? And if it's not, how meaningful would an answer from someone on the list be unless it was an official Microchip statement? ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads