Operational Amplifier Fundamentals Unit 3 – The Noninverting Amplifier
Exercise 2 – Noninverting Amplifier AC Operation
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to operate a noninverting amplifier
using ac inputs. You will verify circuit operation with an oscilloscope.
EXERCISE DISCUSSION
- A noninverting amplifier amplifies an ac input signal.
- Due to the noninverting configuration, output and input waveforms are not inverted or phase
shifted. - On the circuit board, the output voltage is defined by the equation
VO = VI x [1 + (R2/R1)] - If the input waveform amplitude is excessive, the op amp becomes saturated and distorts its
output waveform. - The active, undistorted peak-to-peak amplitude of an output waveform is limited by the
power supply voltage levels. - On the circuit board, the maximum output amplitude is 20 Vpk-pk.