Analog Devices Inc. 107723-HMC232LP4

Overview

The 107723-HMC232LP4 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SPDT non-reflective switch in a 24-lead 4×4 mm QFN package, operating from DC to 12 GHz. It delivers 1.5 dB typical insertion loss at 6 GHz, >60 dB isolation up to 3 GHz, and +27 dBm input P1dB compression, serving as a high-isolation RF signal path selector in microwave transceivers.

For engineers reviewing the 107723-HMC232LP4 datasheet, 107723-HMC232LP4 pinout, 107723-HMC232LP4 application, or 107723-HMC232LP4 equivalent, key selection criteria include its -5/0 V complementary control logic, non-reflective architecture, 42 dB isolation at 12 GHz, and compatibility with 50 Ω RF systems requiring broadband switching without external bias.

Technical Context

This GaAs MESFET-based SPDT switch uses a non-reflective topology with internal 50 Ω terminations on both RF ports when off, enabling stable impedance matching across DC–12 GHz. Its complementary negative-voltage control (A/B pins at -5 V / 0 V) eliminates need for positive bias rails or level shifters.

Thermal design is supported by a 94 °C/W junction-to-lead thermal resistance and MSL1 rating, while absolute maximum RF input power is +30 dBm (at +50 °C) with strict caution against hot-switching above +27 dBm under nominal control conditions.

Key Specifications

Pinout & Package

24-lead leadless QFN package (4×4 mm body, 0.8 mm height), low-stress injection-molded plastic with Sn/Pb finish (MSL1, 235 °C peak reflow). All ground leads (pins 3,5,8,10,21,23) and exposed paddle must be soldered to PCB RF ground per Hittite land pattern guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HMC547LP3E and QM11036, the 107723-HMC232LP4 uniquely balances ultra-low control complexity (-5/0 V only, no bias) with proven 12 GHz performance-ideal for legacy or cost-sensitive RF systems retaining negative logic infrastructure.

Availability

The 107723-HMC232LP4 is available at Aetrix Electronics and suitable for 5G infrastructure, microwave radio links, and military communications systems requiring stable component supply and long-term obsolescence management.

Supply support for 107723-HMC232LP4 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, integrating its high-frequency RF/Microwave portfolio into ADI's broader signal chain solutions.

The 107723-HMC232LP4 belongs to Hittite's GaAs MMIC SPDT switch product line, engineered for broadband wireless infrastructure where high isolation, low loss, and simple negative-voltage control are essential.

FAQ

What is the control voltage requirement for the 107723-HMC232LP4?

The 107723-HMC232LP4 requires complementary negative control voltages: logic high = -5 V (±0.5 V), logic low = 0 V, applied to pins A and B. No positive supply or external bias is needed-this simplifies driver design and reduces system power overhead compared to CMOS-controlled alternatives. The 107723-HMC232LP4 operates reliably across -40 °C to +85 °C ambient.

Does the 107723-HMC232LP4 require external DC blocking capacitors?

Yes, the 107723-HMC232LP4 has DC-coupled RF ports (RFC, RF1, RF2), so external blocking capacitors are required if the RF line DC potential differs from 0 V. This prevents unintended DC current flow and ensures proper 50 Ω AC termination. The 107723-HMC232LP4 evaluation board (107602) uses 100 pF 0603 capacitors at each RF port.

What is the maximum RF input power the 107723-HMC232LP4 can handle?

The 107723-HMC232LP4 supports +30 dBm RF input power at +50 °C ambient, but Hittite cautions against "hot switching" above +27 dBm under nominal -5/0 V control. Exceeding this risks permanent degradation due to channel temperature rise. The 107723-HMC232LP4 thermal resistance is 94 °C/W, making heatsinking critical in high-duty-cycle applications.

Is the 107723-HMC232LP4 pin-compatible with the HMC232LP4E variant?

Yes, the 107723-HMC232LP4 and HMC232LP4E share identical pinout, package dimensions (4×4 mm QFN), and electrical specifications. The difference is RoHS compliance: HMC232LP4E uses 100% matte tin lead finish (MSL1, 260 °C peak reflow), while 107723-HMC232LP4 uses Sn/Pb (MSL1, 235 °C). Both are functionally interchangeable in existing designs.

How does the non-reflective design of the 107723-HMC232LP4 benefit system-level performance?

The 107723-HMC232LP4's non-reflective design terminates the off-state RF port with 50 Ω internally, maintaining consistent impedance match regardless of switch state. This minimizes VSWR excursions, reduces signal reflections in cascaded stages (e.g., PA–switch–antenna), and improves stability in oscillator and amplifier feedback loops-critical in test instrumentation and radar systems where signal integrity is paramount. The 107723-HMC232LP4 achieves >14 dB off-state return loss up to 12 GHz.