===== Voltage Follower ===== The voltage follower (also called a buffer) is a basic application of an OpAmp. It provides a high input [[impedance]], a low output [[impedance]] and unity gain. So the voltage in is the same as the voltage out. |\ o--|+\ | \ +-|- /----+-----o | | / | | |/ | +---------+ CategoryTheory CategoryOpAmp CategoryCircuit