Analog Devices Inc. HMC-C011

Overview

HMC-C011 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SPDT non-reflective switch in a hermetic C-5 module with field-replaceable SMA connectors, operating from DC to 20 GHz. It delivers >45 dB isolation up to 5 GHz, 2.0 dB typical insertion loss at 12 GHz, and supports CMOS-level +5 V control with <2 mA bias current. It serves as a high-isolation RF path selector in microwave test instrumentation and military radar front-ends.

For engineers reviewing the HMC-C011 datasheet, HMC-C011 pinout, HMC-C011 application, or HMC-C011 equivalent, key selection criteria include broadband isolation performance across DC–20 GHz, non-reflective termination for impedance stability during switching, low switching transients (<20 mVpp), and compatibility with +5 V CMOS logic interfaces in harsh-environment RF systems.

Technical Context

The HMC-C011 implements a monolithic GaAs MESFET-based SPDT architecture with integrated DC blocking on all RF ports and internal 50 Ω matching. Its non-reflective design terminates the off-state port with a matched resistive load, minimizing signal reflection during state transitions.

Control interface uses TTL/CMOS-compatible voltage levels: high state = +3.5 V to +5 V at ~1 mA, low state = 0 to +1.5 V at ~20 µA. Switching is edge-triggered with 1.3 ns rise/fall time and 5.0 ns ON/OFF delay, enabling fast TDD and pulse-gated RF applications.

Key Specifications

Pinout & Package

Hermetically sealed C-5 package with gold-plated Kovar housing and integrated field-replaceable Tensolite 5602-5CCSF SMA connectors. Module weight: 17.7 g ±1 g including connectors; mounting spacer: nickel-plated aluminum.

Key Features

Applications

Equivalent & Alternatives

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

Compared with HMC1082LP4E and QM11036, the HMC-C011 uniquely combines hermetic SMA-module integration, true non-reflective operation across DC–20 GHz, and −55 °C to +85 °C qualification-making it irreplaceable in field-deployed microwave systems requiring zero-layout redesign and guaranteed RF stability.

Availability

HMC-C011 is available at Aetrix Electronics and suitable for basestation infrastructure, microwave radio & VSAT, and test instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for HMC-C011 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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and RF technologies for precision signal processing and connectivity.

The HMC-C011 belongs to Analog Devices' legacy Hittite Microwave RF switch product line, engineered specifically for broadband, high-isolation, non-reflective switching in defense, aerospace, and telecom infrastructure where reliability under thermal and mechanical stress is non-negotiable.

FAQ

What is the operating frequency range of the HMC-C011?

The HMC-C011 operates from DC to 20 GHz with specified performance across this entire band. Insertion loss remains ≤4.9 dB and isolation ≥35 dB up to 20 GHz. Performance is characterized at +25 °C with +5 V bias and 50 Ω system impedance, and validated over −55 °C to +85 °C operating temperature. The HMC-C011 maintains consistent broadband behavior without band-switching circuitry.

Does the HMC-C011 require external DC blocking capacitors?

Yes, the HMC-C011 requires external DC blocking capacitors on RFC, RF1, and RF2 if the connected RF line has a DC potential different from 0 V. All three RF pins are DC-coupled and internally matched to 50 Ω, but lack built-in blocking. The HMC-C011 datasheet explicitly states this requirement to prevent bias disruption or damage. No DC blocking is needed on Vctl or Vdc lines.

What is the control interface voltage specification for the HMC-C011?

The HMC-C011 uses a CMOS-compatible control interface: logic high = +3.5 V to +5 V at ~1 mA, logic low = 0 to +1.5 V at ~20 µA. Pin 5 (Vctl) requires an active pull-up to +5 V. The HMC-C011 does not accept negative control voltages or exceed Vdc +0.5 V. Absolute maximum Vctl is −0.5 V to Vdd +0.5 V, per the absolute ratings table.

Is the HMC-C011 pin-compatible with other Hittite SPDT switches like the HMC1082LP4E?

No, the HMC-C011 is not pin-compatible with the HMC1082LP4E. The HMC-C011 uses a 6-pin C-5 module with SMA connectors (RFC, RF1, RF2, GND, Vctl, Vdc), while the HMC1082LP4E is a 24-lead 4×4 mm QFN with different pin assignment and no integrated connectors. Their footprints, I/O configurations, and mechanical interfaces are fundamentally incompatible-direct replacement would require PCB redesign and mechanical adaptation.

What is the maximum RF input power the HMC-C011 can handle continuously?

The HMC-C011 has an absolute maximum RF input power rating of +27 dBm. For continuous operation with linear performance, the datasheet specifies +23 dBm as the hot-switch power level-the highest RF power sustainable during active switching without degradation. At +23 dBm, P1dB remains 23 dBm across 0.5–20 GHz, confirming robust compression headroom. Exceeding +23 dBm during switching risks parametric shift or reliability impact.