The output voltage of op-amp changes immediately, with a change in the input voltage. The bandwidth of an ideal op-amp is infinite, and it can amplify both DC and AC signals. An op-amp that starts to work as an amplifier at a particular frequency range is known as bandwidth. Then the difference between the two inputs can be applied by an ideal op-amp to infinity.įor an ideal op-amp, there is zero output voltage for zero input voltage then the input offset voltage is zero. When we look into the open-loop voltage gain of an ideal op-amp, it is infinite. Ideally, the output impedance of op-amp must be zero.

The Ro ensures that the output voltage of the op-amp remains the same for any value of load resistance connected. Ideally, the op-amp input impedance must be infinite, and the output impedance of op-amp denoted as Ro. The figure below shows an ideal op-amp, the input impedance is denoted, as Rin and does not allow any current to flow into it. Then we must thank design engineers for inventing the operational amplifiers, which is the basic building block used to provide gain for audio systems and voltage regulator application. But how does the DJ controls the music and sound equipment at the nightclubs?Įver thought about how the volume of the sound system controlled? The answer depends on the ability of the Disco jockey. Most youths love to party during the weekend, and the question they come across, are you dancing tonight? The contribution of the Operational amplifier is immense and find use in various technology. Without an Operational amplifier, we can never imagine the current gadget world. How to simulate operational amplifier using LTspice? Before that let us understand about Operational amplifier.

Ltspice two stage op amp