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Hittite Microwave Corporation has introduced four low-noise amplifiers (LNAs) that are well suited for applications in military radar and electronic warfare applications from 2 GHz to 4 GHz.

The HMC594LC3B is a GaAs pHEMT MMIC LNA that is rated from 2 GHz to 4 GHz and delivers 10 dB gain, a 3 dB noise figure and +36 dBm output IP3. The HMC594LC3B is housed in a 3 mm x 3 mm leadless-ceramic SMT package and the RF I/Os are matched to 50 Ohms without external components.

The HMC609LC4 is a GaAs pHEMT MMIC LNA, which is also rated from 2 GHz to 4 GHz, and delivers 20 dB gain, a 3.5 dB noise figure, and +36.5 dBm output IP3. The HMC609LC4 is housed in a 4 mm x 4 mm leadless ceramic SMT package and the RF I/Os are matched to 50 Ohms without external components.

The HMC594LC3B and the HMC609LC4 feature excellent gain flatness of ±0.2 dB and ±0.4 dB respectively and both deliver consistent linearity across their rated bandwidth. For hybrid and multichip module applications, the HMC594LC3B and HMC609LC4 are available in chip form as the HMC594 and the HMC609. All four of these wide dynamic range LNAs operate from a +6 V supply and incorporate dc blocked RF I/Os.

Samples and evaluation PC boards are available from stock.