Analog Devices Inc. HMC411MS8GE

Overview

HMC411MS8GE from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC single-balanced mixer operating from 10 GHz to 15 GHz, delivering 9 dB typical conversion loss, 30 dB LO/IF isolation, and +16 dBm input IP3 at +13 dBm LO drive - used in microwave radio transceivers for frequency translation in point-to-point wireless links.

For engineers reviewing the HMC411MS8GE datasheet, HMC411MS8GE pinout, HMC411MS8GE application, or HMC411MS8GE equivalent, key selection criteria include RF/LO bandwidth alignment, LO drive sensitivity (+9 to +15 dBm), DC-coupled IF port current limit (±2 mA), and MSOP8G RoHS-compliant package thermal and grounding requirements.

Technical Context

This passive mixer uses a GaAs Schottky diode quad topology with internal balun structures to achieve single-balanced operation without external bias or tuning components. It functions as a downconverter or upconverter across its full 10–15 GHz RF/LO band while maintaining consistent 50 Ω AC-coupled RF and LO ports.

The IF port is DC-coupled and supports DC–3 GHz operation, requiring external DC blocking only when DC response is not needed; all ground pins (1, 8) and the exposed paddle must be soldered to PCB RF ground per layout guidelines to ensure specified isolation and conversion loss performance.

Key Specifications

Pinout & Package

Package: RoHS-compliant MSOP8G (mini small-outline plastic package) with exposed ground paddle; 8-pin surface-mount, MSL1 rated, 260 °C peak reflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-balanced mixer applications.

Compared with HMC411MS8GE, HMC1048LP3E trades bandwidth for marginally worse loss, while QPC1006 delivers superior linearity at the cost of bias dependency and layout overhead - making HMC411MS8GE optimal for compact, low-power, self-contained microwave radio IF stages.

Availability

HMC411MS8GE is available at Aetrix Electronics and suitable for long-haul radio platforms, microwave radio transceivers, and VSAT terminal designs requiring stable component supply across extended product lifecycles.

Supply support for HMC411MS8GE 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 integrates its high-frequency RF portfolio into ADI's Communications & RF Solutions group.

The HMC411MS8GE belongs to Hittite's legacy GaAs MMIC mixer family, engineered specifically for high-isolation, low-loss frequency translation in licensed microwave bands (10–15 GHz) used in carrier-grade wireless infrastructure.

FAQ

What is the maximum LO drive level supported by the HMC411MS8GE?

The HMC411MS8GE supports a maximum LO drive level of +15 dBm per absolute maximum ratings. Exceeding this may cause irreversible degradation of conversion loss and isolation performance. The device operates optimally within +9 to +15 dBm; at +15 dBm, conversion loss remains near 9 dB, but LO compression effects begin to appear above this level. Always verify LO source power accuracy and stability when deploying the HMC411MS8GE in production systems.

Can the HMC411MS8GE be used in upconverter configurations?

Yes, the HMC411MS8GE is fully bidirectional and validated for both upconversion and downconversion modes per its datasheet characterization. In upconverter mode (IF→RF), it maintains 9 dB conversion loss and 27 dB LO/RF isolation at 14.45 GHz RF output with 1.45 GHz IF input and 13 GHz LO. Layout grounding and impedance control remain identical regardless of directionality, making the HMC411MS8GE suitable for TDD transceivers.

Does the HMC411MS8GE require external DC blocking on the IF port?

No - the IF port of the HMC411MS8GE is DC-coupled and designed for direct connection to baseband or low-IF circuitry. External DC blocking is only required if DC response is undesirable (e.g., to avoid amplifier saturation from DC offset). When using DC coupling, ensure the connected stage sources/sinks ≤ ±2 mA to prevent die damage, as specified in the absolute maximum ratings.

What is the recommended PCB grounding strategy for the HMC411MS8GE?

The HMC411MS8GE requires all ground pins (1 and 8) plus the exposed paddle to be soldered directly to a solid RF ground plane using ≥6 thermal vias spaced ≤2 mm apart. This ensures specified LO/IF isolation (>30 dB) and minimizes thermal resistance. Rogers 4350 substrate is recommended for evaluation boards, and microstrip traces must maintain 50 Ω impedance on RF/LO lines - critical for repeatable HMC411MS8GE performance across temperature and frequency.

Is the HMC411MS8GE pin-compatible with the HMC411MS8G?

Yes, the HMC411MS8GE is a RoHS-compliant drop-in replacement for the HMC411MS8G, sharing identical pinout, package dimensions, electrical specifications, and thermal profile. The only differences are lead finish (100% matte Sn vs. Sn/Pb) and peak reflow temperature (260 °C vs. 235 °C), both compliant with MSL1 handling. No PCB redesign or layout change is required when migrating from HMC411MS8G to HMC411MS8GE.