I want to use a buffer(voltage follower) for one input before passing it to my Avr ADC.
The Thing is i have a single power supply config( pin 4-GND pin 7-5volts.
pin 3 is fed in the input
pin 2 shorted to pin 6 (standard voltage follower circuit,
The thing is neither opamp 741 or lm318 or CA3140E outputs match the input volatage for the complete range of 0-5v input signal.
Any suggestions if there is any opamp there that i can have a drop in replacement that could maintain i/o characteristics
Or may be i should make changes to the circuit(i would hate to do that now that a PCB is ready)