Analog Devices Inc. 103743-HMC286

Overview

HMC286 from Hittite Microwave Corporation (now part of Analog Devices) is a GaAs MMIC low-noise amplifier optimized for 2.3–2.5 GHz spread spectrum systems, delivering 19 dB gain, 1.7 dB noise figure, and +6 dBm output P1dB at 2.4 GHz from a single +3 V supply drawing only 8.5 mA - ideal for compact 2.4 GHz RF front-ends in wireless connectivity modules.

For engineers reviewing the HMC286 datasheet, HMC286 pinout, HMC286 application, or HMC286 equivalent, key selection criteria include its SOT26 package footprint, no-external-components operation, temperature-stable gain (±1.25 dB flatness), broadband input/output return loss (>12 dB / >4.5 dB), and suitability for Bluetooth, 802.11 WLAN, and PCMCIA platform integration.

Technical Context

The HMC286 integrates on-chip impedance matching for both input and output, enabling repeatable 50 Ω AC-coupled performance without external tuning components. Its monolithic GaAs design supports stable operation across –40 °C to +85 °C with <0.03 dB/°C gain drift and maintains >9 dBm OIP3 for linear amplification in interference-prone 2.4 GHz ISM band environments.

It operates as a single-stage LNA with fixed bias architecture: VDD applied to Pin 3 powers the device, while RF signals enter via Pin 1 (RFIN) and exit via Pin 4 (RFOUT); Pins 2, 5, and 6 are dedicated RF/DC ground terminals requiring direct PCB ground plane connection per RF layout best practices.

Key Specifications

Pinout & Package

SOT26 surface-mount package (0.118″ × 0.118″ / 3.0 mm × 3.0 mm), RoHS-compliant for HMC286E variant; low-stress molded plastic body with Sn/Pb finish (HMC286) or 100% matte Sn (HMC286E); MSL1 rating with peak reflow up to 235 °C (HMC286) or 260 °C (HMC286E).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise amplifier applications.

Compared with HMC286, HMC286E offers identical RF performance with enhanced process compliance, while QPL9057 trades slightly higher power for broader bandwidth and improved noise figure - making it suitable for next-gen 2.4/2.5 GHz coexistence designs where layout space permits a different footprint.

Availability

HMC286 is available at Aetrix Electronics and suitable for Bluetooth transceivers, 802.11 WLAN receivers, and PCMCIA wireless cards requiring stable component supply, consistent RF performance, and long-term obsolescence management.

Supply support for HMC286 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

Hittite Microwave Corporation was a U.S.-based RF/microwave IC designer acquired by Analog Devices in 2014; known for high-performance GaAs and SiGe MMICs targeting wireless infrastructure and defense markets.

HMC286 belongs to Hittite's SMT low-noise amplifier product line, engineered specifically for size-constrained 2.4 GHz ISM-band consumer wireless platforms including Bluetooth, HomeRF, and early Wi-Fi implementations.

FAQ

What is the operating voltage range for the HMC286?

The HMC286 is specified for single-supply operation at +3 V DC, with absolute maximum drain bias voltage rated at +7 Vdc. Operation outside the +3 V nominal condition degrades gain, noise figure, and linearity; the device draws 8.5 mA typical at +3 V and remains functional within ±5% supply tolerance, but performance parameters are guaranteed only at exactly +3 V per the datasheet test conditions.

Does the HMC286 require external matching components?

No, the HMC286 does not require external matching components. It features fully integrated on-chip input and output matching networks designed for 50 Ω operation at 2.4 GHz. The RFIN and RFOUT pins are AC-coupled and internally matched - only DC blocking capacitors are needed at the ports, and no external inductors or capacitors are necessary for basic functionality.

What is the thermal resistance and maximum channel temperature of the HMC286?

The HMC286 has a channel-to-lead thermal resistance of 157 °C/W and a maximum channel temperature rating of 150 °C. At 85 °C ambient, its continuous power dissipation is limited to 0.413 W, derating linearly above that temperature. Proper PCB layout - including direct grounding of Pins 2/5/6 to a large copper pour with multiple thermal vias - is essential to maintain safe junction temperatures under sustained RF drive.

Is the HMC286 pin-compatible with the HMC286E?

Yes, the HMC286 and HMC286E share identical pinout, package dimensions, and electrical specifications. The HMC286E differs only in RoHS-compliant packaging: 100% matte tin plating and MSL1 rating for 260 °C reflow, whereas the HMC286 uses Sn/Pb finish and is rated for 235 °C peak reflow. PCB layout and schematic symbols are fully interchangeable.

What evaluation resources are available for the HMC286?

Hittite provided Evaluation PCB 103741 (circuit board) and complete Evaluation PCB 103743 (assembled with SMA connectors and DC pins) for the HMC286. These boards implement proper 50 Ω RF routing, ground via stitching, and decoupling - enabling rapid prototyping. Though discontinued post-acquisition, legacy documentation and Gerber files remain accessible via Analog Devices' archived Hittite product pages.