Operational Amplifier Fundamentals Unit 4 – The Voltage Follower
This voltage follower configuration is used to measure the effects of op amp slew rate and full-
power bandwidth on an input signal.
A voltage follower configuration generates an output signal (VO) equal to and in phase with the
circuit input signal (VI).
However, some applications require unity gain with phase inversion. An op amp configured as a
unity gain inverting amplifier meets this requirement.
On your circuit board, the VOLTAGE FOLLOWER circuit block can be configured for either
noninverting or inverting operation.
Due to the low output offset voltage values of the LF441 op amp, the VOLTAGE FOLLOWER
circuit block does not require a nulling circuit.