Analog Devices Inc. HMC393MS8GE

Overview

HMC393MS8GE from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC DPDT diversity switch operating at 5–6 GHz, delivering 1.2 dB typical insertion loss, 20 dB isolation between antennas and Tx/Rx paths, and +49 dBm input third-order intercept. It supports positive CMOS-level control (0/+5 V) and is designed for antenna switching in 5.0–6.0 GHz wireless infrastructure and client radios.

For engineers reviewing the HMC393MS8GE datasheet, HMC393MS8GE pinout, HMC393MS8GE application, or HMC393MS8GE equivalent, key selection criteria include its DPDT configuration, MSOP8G package footprint, RF performance across temperature (−40°C to +85°C), and compatibility with HiperLAN/UNII band requirements.

Technical Context

The HMC393MS8GE implements a monolithic GaAs MMIC architecture with four independent CMOS-compatible control inputs (V1–V4) enabling four distinct RF path states: ANT1↔Tx, ANT1↔Rx, ANT2↔Tx, and ANT2↔Rx. Its design integrates on-chip DC blocking capability and requires external DC blocking capacitors at all RF ports.

It operates under 0/+5 Vdc control logic with 10 µA typical bias current per control line, achieves sub-22 ns switching times (tON/tOFF), and maintains stable RF performance across −40°C to +85°C ambient, validated by measured insertion loss, isolation, and IP3 vs. temperature plots.

Key Specifications

Pinout & Package

Package: MSOP8G (Ultra-small surface-mount package, 3.0 × 3.0 × 0.85 mm, 14.8 mm² footprint, RoHS-compliant matte tin lead finish, MSL1 rated).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DPDT diversity switch applications.

Compared with QM11028 and SKY16604-362LF, the HMC393MS8GE offers the highest IP3 (49 dBm) and best isolation (20 dB) in its class, making it optimal for infrastructure-grade linearity and isolation-critical deployments.

Availability

HMC393MS8GE is available at Aetrix Electronics and suitable for 5 GHz wireless infrastructure, Wi-Fi client devices, and HiperLAN/UNII radio systems requiring stable component supply, RoHS compliance, and proven GaAs MMIC performance.

Supply support for HMC393MS8GE 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 continues its high-frequency RF IC portfolio, specializing in GaAs, GaN, and SiGe solutions for communications, defense, and instrumentation.

The HMC393MS8GE belongs to Hittite's legacy C-band DPDT switch family, engineered specifically for 5–6 GHz antenna diversity and T/R switching in licensed and unlicensed broadband wireless systems.

FAQ

What is the operating frequency range of the HMC393MS8GE?

The HMC393MS8GE operates over 5.0–6.0 GHz with fully characterized performance including insertion loss, isolation, return loss, and IP3 across this band. All specifications-including 1.2 dB typical insertion loss and 20 dB isolation-are guaranteed within this range at +25°C and validated down to −40°C and up to +85°C ambient.

Does the HMC393MS8GE require external DC blocking capacitors?

Yes, the HMC393MS8GE requires external DC blocking capacitors at all four RF ports (ANT1, ANT2, Tx, Rx), as stated in the Absolute Maximum Ratings section. Capacitor value must be selected for the lowest operating frequency (e.g., 100 pF for 5 GHz), and evaluation PCBs use 0402 chip capacitors placed adjacent to each port.

What control voltage levels are compatible with the HMC393MS8GE?

The HMC393MS8GE accepts 0/+5 Vdc CMOS-level control signals on V1–V4, with low state defined as 0–0.5 Vdc (≤10 µA) and high state as +5.0–+6.5 Vdc (≤10 µA). It does not support negative or analog control voltages, and exceeding +6.5 Vdc risks damage per absolute maximum ratings.

How does the HMC393MS8GE implement DPDT functionality?

The HMC393MS8GE implements true DPDT switching using four independent control inputs (V1–V4) to select among four mutually exclusive RF paths: ANT1↔Tx (State 1), ANT1↔Rx (State 2), ANT2↔Tx (State 3), and ANT2↔Rx (State 4), as defined in the truth table. No external logic or additional switches are needed to achieve full diversity and T/R routing.

Is the HMC393MS8GE pin-compatible with the HMC393MS8G?

Yes, the HMC393MS8GE is pin-compatible and functionally identical to the HMC393MS8G, differing only in RoHS compliance (matte Sn finish vs. Sn/Pb), MSL1 reflow profile (260 °C vs. 235 °C), and packaging material. Both share identical pinout, electrical specs, thermal behavior, and truth table, enabling drop-in replacement in existing designs.