An active electronic circuit that takes a weak input signal and produces a stronger output signal matching the original waveform. It achieves this by modulating power from an external supply using active components like transistors or vacuum tubes. Amplifiers are specified by their gain, bandwidth, noise figure, and linearity.
Heard on the job
We need a low-noise amplifier on the front end to pull that weak RF signal out of the noise floor.
Also heard as
- amp