thanks for ur replies.. reachrkata is right, i would not provide another supply for the op amp.. what i only have is the battery with a 7.2v 2800 maH rating.....

ah yes im sorry... i would be using that as a supply for my high speed high torque motor.. so u do know how to play with batteries? im so...

hi 2 all! i still am an undergrad and im working now on my project. im having difficulty on producing high current from mere batteries. for example... i want to...