Vasile Surducan wrote: > > see http://www.geocities.com/vsurducan/pic/f877.html > > however you can't go under +2.5V on vref+ Hmm, and what about the Vref-? Is the max voltage is +2.5V there? udv Csaba -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads