This part of the class explains the negative feedback in op-amp circuits and how to compute basic parameters for the basic op-amp configurations. You will learn how to:
Analyze three op-amp configurations including inverting and non-inverting amplifiers, and voltage followers
Describe impedances of these basic op-amp configurations
Troubleshoot op-amp circuits.
Key Concepts
Op-amp configurations with negative feedback
Op-amp impedances
Troubleshooting op-amp amplifiers
Non-inverting amplifiers
Inverting amplifiers
Voltage followers
Closed-loop voltage gain
The non-inverting amplifier has a minimum voltage gain of unity.
An inverting amplifier can provide gain or attenuate the output.
The output of an inverting amplifier is 180° out of phase with the input.
A voltage follower always has a gain of 1.
All op-amps have designed input and output impedances.
The use of negative feedback has a major impact on the input and output impedance that can be far different than the design parameters.
Op-amps can be connected in closed-loop or open-loop configurations.
If you need to work with Microchip Support staff directly, you can submit a technical support case. Keep in mind that many questions can be answered through our self-help resources, so this may not be your speediest option.
