HMC571LC5TR

The HMC571LC5TR is a broadband GaAs MMIC RF amplifier from Analog Devices (formerly Hittite). It comes in a small 5-lead LC5 ceramic package with Tape & Reel packaging. Designed for RF front-end gain, it requires external biasing and matching networks (per the datasheet/app notes) and is used in wireless, radar, and test equipment as a gain block or driver stage. Performance (bandwidth, gain, noise figure, linearity, current) and exact pinout depend on the specific operating conditions and matching network chosen, so the datasheet provides the precise figures and recommended circuits. For exact specifications, operating range, and evaluation board guidance, consult the HMC571LC5TR datasheet on Analog Devices’ website.

- Pin count: 8 pins (8-lead package)
- Function: GaAs MMIC mixer (RF/LO/IF) used for downconversion/upconversion in RF front-ends; provides RF input, LO input, and IF output ports.

Manufacturer: Analog Devices, Inc. (ADI). It is a multinational American semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing ICs, including RF/microwave components. The HMC571LC5TR originally comes from Hittite Microwave, which ADI acquired in 2014.

Typical applications for the HMC571LC5TR are in RF/microwave front-ends and signal chains, including:
- Wireless microwave transceivers and point-to-point links (backhaul)
- Radar and surveillance systems
- Satellite communications front-ends (uplink/downlink stages)
- Aerospace/defense RF front-ends
- RF test and measurement equipment (signal generation, mixing, pre‑amplification)
Note: it is a GaAs MMIC device used as a mixer/amplifier stage in broadband RF/microwave chains, requiring external matching networks and biasing.

Leadless Ceramic Chip Carrier (LCC) package; Tape & Reel (TR) packaging.