HMC490

HMC490 is a GaAs MMIC RF mixer from Analog Devices (formerly Hittite). It’s a broadband, single-channel, double‑balanced mixer used to translate signals between RF and IF by mixing with a local oscillator.
Key points
- Function: RF signal on the RF port is mixed with LO to produce an IF output (or vice versa, depending on up/down conversion).
- Features: on‑chip matching networks and port isolation in a compact package; designed for wideband operation; typically single‑supply; LO drive requirements specified in the datasheet.
- Applications: RF front‑ends in communications receivers, up/downconverters, SDRs, radar, test and measurement equipment.
- How to use: apply RF to the RF port, LO to the LO port, and take the IF from the IF port. LO power and exact frequencies are defined in the datasheet.
- Design notes: check frequency range, conversion loss, isolation, biasing, and package/pinout. External components may be minimal due to internal matching.
For specifics (band, LO range, power, footprint), see the HMC490 datasheet.

HMC490 is a GaAs MMIC mixer family from Analog Devices/Hittite. Exact features vary by variant, but typical characteristics include:
- 50-ohm matched RF, LO, and IF ports
- Double-balanced mixer for good isolation and performance
- Wide RF/IF bandwidth (range depends on the specific model)
- LO drive requirement typically in the low to mid +dBm range (variant-dependent)
- Low-to-moderate conversion loss with good isolation between ports
- High RF/LO/IF isolation and good IIP3
- 3–5 V supply operation (industrial temp versions available)
- Small MMIC ceramic package (compact footprint)
- Temperature range suitable for -40°C to +85°C (or better)
- Supported by reference designs and evaluation boards
Note: for precise specs (frequency ranges, exact LO drive, conversion loss, isolation, and power supply), please provide the exact HMC490 variant or share the datasheet link.

Which exact part number? The HMC490 family has multiple variants (die and different surface‑mount LP/SOT packages). Provide the full part number (e.g., HMC490LP4E) and I’ll give the exact package type.

The HMC490 is manufactured by Analog Devices (originally released under the Hittite/HMC brand after Hittite Microwave Corporation). Analog Devices is a multinational semiconductor company that designs and manufactures analog, mixed‑signal, RF/microwave, and power-management integrated circuits and modules.

HMC490 applications (broadband MMIC mixer in RF front-ends):
- Wireless receivers/transceivers
- Downconversion/upconversion for SATCOM, radar and point-to-point links
- Spectrum monitoring and SIGINT
- RF test and measurement equipment (downconverters)
- Aerospace/defense and automotive RF systems requiring high dynamic range

Which exact part do you mean (HMC490, HMC490LP3, HMC490A, etc.) and which key specs matter (frequency range, gain, power, switch/amp/type)? I’ll then list equivalent parts.