Low Noise Amplifier

An amplifier is an electronic device that can increase the power of a signal (a voltage or current that varies with time). It can be used to enhance voltage, current, or signal energy. The amount of amplification provided by an amplifier is measured by its gain, which is the ratio of the output voltage, current, or power to the input. An amplifier is a circuit with a power gain greater than 1. Amplifiers are often used in broadcasting, wireless communications, or audio equipment.