signalamplifiers
Signalamplifiers, commonly written as signal amplifiers, are electronic devices that increase the amplitude of a signal while preserving its information content. Amplification is accomplished by supplying energy from a power source to the signal, with careful design to minimize added noise and distortion. Amplifiers are used across audio, radio, and measurement systems.
Electronic amplifiers handle electrical signals. They include low-noise amplifiers at the front end of receivers, voltage
Performance is described by several parameters: gain (voltage, current, or power), bandwidth, noise figure, linearity, and
Applications include telecommunications, broadcast and audio systems, instrumentation, radar, and fiber-optic networks. The field has evolved