As we all know, amplifiers have very high input impedance across the input and could provide a reasonable amount of current across the output. The above circuit is very common in electronics. The circuit is connected as a unity-gain follower configuration. It is a simple negative feedback non-inverting Op-Amp circuit. Why do we need Frequency Compensation in Op-Amps? Otherwise, negative feedback amplifiers have the feedback circuitry connected across negative terminal.
If the feedback network analog across the op-amp’s positive terminal, it is called positive feedback. The operational can have negative feedback or positive feedback. But in a closed-loop configuration, the amplifier needs feedback to work properly. In an open-loop configuration, there are no feedback circuits are associated with it.
Rail to rail op amp offset compensation how to#
Before going straight into the advance application of operational amplifiers and how to stabilize the amplifier using frequency compensation technique, let's explore a few basic things about the operational amplifier.Īn amplifier can be configured as an open-loop configuration or a closed-loop configuration.