This page collects interactive circuits and simulations from Chapter 7 of Ultimate Electronics Book: Op-Amps.
Exercise Click any circuit to open in a new tab. Most include simulations.
The ideal op-amp model is a key building block of designing analog filters, amplifiers, oscillators, sources, and more.
An op-amp voltage buffer mirrors a voltage from a high-impedance input to a low-impedance output.
A voltage divider (or other reference element) plus an op-amp can create a fixed or adjustable voltage reference.
An op-amp circuit forming a voltage amplifier, using negative feedback to multiply an input signal by a positive gain set by two resistors.
An op-amp circuit forming a voltage amplifier with negative gain set by the ratio of two resistors.
A transimpedance amplifier (TIA) converts a current to a voltage and is often used with current-based sensors like photodiodes. It’s also a common building block that helps explain the performance and stability limits of many other op-amp circuits.