The LNF-LNC1.5_3.5A from Low Noise Factory is an ultra-low noise cryogenic amplifier that operates from 1.5 to 3.5 GHz. The amplifier provides a gain of 26 dB with a noise figure of 0.021 dB and noise temperature of 1.4 K. It requires a supply voltage of -0.5 to 3 V. The LNA is available in a lightweight gold plated aluminum coaxial package that measures 29.2 x 19.8 x 7.80 mm and has SMA/Nano-D female connectors.
