Hi, I have configured my op-amp LM324 as a voltage follower by typing the -ve input to the output of 1 op-amp gate. When I tie the +ve input to ground, the output is 0v. But when I tie the +ve input to Vcc(same as the +5v supply to the LM324), the output is just 3.8v. Is there something I missed out? Thanks Mark _________________________________________________________________ Tired of spam? Get advanced junk mail protection with MSN 8. http://join.msn.com/?page=features/junkmail -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads