Introduction to Operational Amplifiers with LTSpice
Contributors:
LightningHawk
Non-Inverting Amplifiers
The Voltage Follower
The voltage follower is a nice example of a non-inverting amplifier. The property of very high input impedance is a desirable feature of the non-inverting configuration. The voltage follower can used as a unity-gain buffer amplifier connected from a high impedance source to a low impedance source - this helps to avoid loading effects on the driving circuit.