Due to the high input impedance very low current will be drawn from input source and then gives high current output to the load. Input impedance of operational amplifier IC 741 will be very high (upto 1MΩ) when we implement in voltage follower or buffer amplifier circuit. Bias pins are connected with battery and output is connected to the 1KΩ Load resistor.
Input signal is applied to the Non inverting terminal (Pin 3) and Inverting terminal (Pin 2) is connected with output (Pin 6) to make negative feedback.
Voltage follower amplifier can also called as Unity gain amplifier or Buffer amplifier. We know voltage follower circuit will give the output same as input signal but the output gain only increase. Simple Voltage Follower Circuit Using op amp 741 designed to give unity gain output.