Analog Devices Inc. 110227-HMC582LP5

Overview

HMC582LP5 from Analog Devices (formerly Hittite Microwave) is a GaAs InGaP HBT MMIC voltage-controlled oscillator with integrated divide-by-4 and half-frequency outputs, operating from 11.1–12.4 GHz at RFOUT, delivering +9 dBm typical output power, -110 dBc/Hz phase noise @ 100 kHz offset, and housed in a 32-lead 5×5 mm QFN package for point-to-point radio and SATCOM local oscillator synthesis.

For engineers reviewing the HMC582LP5 datasheet, HMC582LP5 pinout, HMC582LP5 application, or HMC582LP5 equivalent, this page delivers verified functional roles, triple-output frequency ranges (Fo / Fo/2 / Fo/4), supply current behavior across Vcc, tune voltage sensitivity, and real-world design implications of its monolithic VCO architecture with disableable prescaler and RF/2 sections.

Technical Context

The HMC582LP5 integrates resonators, negative resistance devices, and varactor diodes on a single GaAs die, enabling stable oscillation without external tuning components. Its monolithic structure ensures consistent phase noise performance across -40°C to +85°C and under mechanical shock.

All three outputs-RFOUT (Fo), RFOUT/2 (Fo/2), and RFOUT/4 (Fo/4)-are simultaneously available with AC coupling; Vcc(Dig), Vcc(Amp), and Vcc(RF) are independently supplied to enable selective power-down of prescaler (-65 mA savings) or RF/2 amplifier (-30 mA savings).

Key Specifications

Pinout & Package

Package: 32-lead leadless QFN, 5×5 mm body, exposed ground paddle, Sn/Pb finish, MSL3 rated. Requires soldering of all ground leads and paddle to PCB RF ground per Hittite land pattern guidance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar VCO applications.

Compared with HMC582LP5E and HMC513LP5, the HMC582LP5 offers unique X-band coverage with optimized phase noise and power for SATCOM and military radios, while maintaining pin compatibility with its RoHS variant and architectural similarity to other Hittite LP5-series VCOs.

Availability

HMC582LP5 is available at Aetrix Electronics and suitable for point-to-point radio, SATCOM terminals, and military radar systems requiring stable component supply, long-term obsolescence management, and traceable sourcing from authorized channels.

Supply support for HMC582LP5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices acquired Hittite Microwave in 2014 and maintains its high-frequency RF portfolio, including MMIC VCOs, amplifiers, and switches designed for defense, aerospace, and communications infrastructure.

The HMC582LP5 belongs to Hittite's LP5-series of GaAs MMIC VCOs, engineered specifically for X-band wireless infrastructure and electronic warfare systems demanding low phase noise, wide tuning range, and multi-output flexibility.

FAQ

What is the operating frequency range of the HMC582LP5?

The HMC582LP5 operates from 11.1 to 12.4 GHz at its fundamental RFOUT pin, with corresponding half-frequency (5.55–6.2 GHz) and quarter-frequency (2.78–3.1 GHz) outputs. These ranges are fully characterized over temperature and supply voltage variations, and all three outputs are simultaneously active when respective supply pins are powered.

Can the HMC582LP5 operate without external matching components?

Yes, the HMC582LP5 requires no external resonator or matching network due to its monolithic GaAs InGaP HBT design integrating resonators, varactors, and negative resistance devices. The RFOUT, RFOUT/2, and RFOUT/4 pins are internally matched to 50 Ω and only require external DC blocking capacitors per the application circuit.

How does supply current change when disabling outputs on the HMC582LP5?

Leaving Vcc(Dig) open disables the prescaler and eliminates Fo/4 output, reducing total current by ~65 mA. Leaving Vcc(Amp) open disables the RFOUT/2 amplifier and eliminates Fo/2 output, saving ~30 mA. Full operation draws 350 mA typical at +5 V; disabling both saves ~95 mA total.

What is the recommended grounding practice for the HMC582LP5 package?

The HMC582LP5 requires all ground pins (pins 5, 11) and the exposed metal paddle to be soldered directly to a solid RF/DC ground plane using multiple thermal vias. Per Hittite's land pattern guidance, insufficient grounding degrades phase noise, output power, and harmonic suppression - especially critical above 10 GHz.

Is the HMC582LP5 pin-compatible with other devices in the LP5 series?

The HMC582LP5 shares the same 32-lead 5×5 mm QFN package and pinout configuration with other LP5-series VCOs like HMC513LP5 and HMC583LP5, enabling common PCB footprint reuse across frequency bands. However, electrical characteristics - including tuning range, phase noise, and supply current - differ significantly between variants and are not interchangeable without system-level validation.