low-noise amplifier


Also found in: Acronyms, Wikipedia.

low-noise amplifier

[′lō ‚nȯiz ′am·plə‚fī·ər]
(electronics)
An amplifier having very low background noise when the desired signal is weak or absent; field-effect transistors are used in audio preamplifiers for this purpose.
References in periodicals archive ?
In such applications, an RF Low-Noise Amplifier (LNA) [15] is mandatory.
GaAs FET MMIC technology can be used to make very compact and inexpensive phase shifters, power amplifiers and low-noise amplifiers that can be integrated with control circuits into modules at every radiating element.
The modules are 30mm x 40mm and utilise the SiRFStar 2 chipset and the Royaltek low-noise amplifier and navigation algorithms.
There is no point in having a low-noise amplifier with an input referred voltage noise of 0.6 nV/[square root of (Hz)] when the temperature sensor injects 10 nV/[square root of (Hz)] into the signal path.
This 15 mm X 9 mm device integrates eight channels of a low-noise amplifier, voltage controlled attenuator, programmable gain amplifier, low-pass filter and a 12-bit 50 MSPS ADC with LVDS data outputs.
The SMA661AS is said to be the first low-noise amplifier with integrated matching networks and an embedded power-down function.
The AMMP-6220 is a 6 GHz to 20 GHz low-noise amplifier featuring 2.2 dB noise figure and 23 dB gain.
Particularly useful for offsetting signal loss created by DWDM and optical conditioning devices, this high-gain, low-noise amplifier module features 16 dBm of total output power and provides up to 20 dB of gain across the C-Band while generating <5.5 dB of noise.

Full browser ?