Operational Amplifier

An operational amplifier, or op-amp, is a versatile electronic device that amplifies small electrical signals. It takes a weak input signal, compares it to a reference, and produces a much stronger output signal. Op-amps are used in various applications like audio systems, sensors, and control circuits to process and manipulate signals accurately. They have high gain, meaning they can significantly amplify a tiny input, and are often part of more complex systems designed for filtering, shaping, or measuring signals with precision.