Analog Devices Inc. EV1HMC273AMS10G

Overview

EV1HMC273AMS10G from Analog Devices is an evaluation board for the HMC273AMS10GE GaAs MMIC 5-bit digital attenuator, supporting 0.7–3.8 GHz RF operation with 1 dB LSB steps up to 31 dB total attenuation, ±0.2 dB typical bit error, and MSOP-10EP package integration. It enables rapid characterization of insertion loss, return loss, IIP3 (+46 dBm @ 5 V), and switching speed (1.3 µs) in microwave infrastructure and test equipment.

For engineers reviewing the EV1HMC273AMS10G datasheet, EV1HMC273AMS10G pinout, EV1HMC273AMS10G application, or EV1HMC273AMS10G equivalent, this evaluation PCB provides calibrated SMA interfaces, on-board 5 kΩ bias resistor, DC control headers (J3–J6), and optimized Rogers 4350 RF layout - critical for validating broadband attenuator performance before system integration.

Technical Context

The EV1HMC273AMS10G is a dedicated evaluation platform-not a component-designed to host the HMC273AMS10GE attenuator IC in its native 10-lead Mini-SO with exposed pad (RH-10-3) package. It implements full RF path routing with 50 Ω microstrip traces, dual SMA connectors (J1/J2), and five independent DC control lines routed to pin headers (J3–J6) for TTL/CMOS-compatible 0/+3–5 V bit control.

Board-level design includes DC blocking capacitors C1/C2 (0402, user-selectable 100–300 pF), precision 5 kΩ bias resistor R1 for V_DD supply, and thermal management via direct connection of the IC's exposed paddle to internal ground planes using multiple vias - matching Analog Devices' recommended layout for optimal RF stability and power handling up to +28 dBm.

Key Specifications

Availability

EV1HMC273AMS10G is available at Aetrix Electronics and suitable for microwave radio development, 5G infrastructure prototyping, and RF test equipment calibration requiring stable component supply and validated reference layouts.

Supply support for EV1HMC273AMS10G 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 leader in high-performance analog, mixed-signal, and RF ICs, headquartered in Norwood, MA, serving communications, industrial, and aerospace markets since 1965.

The EV1HMC273AMS10G belongs to Analog Devices' RF evaluation board portfolio, engineered specifically to accelerate validation of GaAs MMIC attenuators in demanding broadband applications from cellular infrastructure to satellite communications.

FAQ

What is the EV1HMC273AMS10G used for?

The EV1HMC273AMS10G is an evaluation PCB designed exclusively to characterize the HMC273AMS10GE 5-bit GaAs digital attenuator. It provides calibrated RF paths, DC control access, and thermal-aware layout to verify insertion loss, bit accuracy, IIP3, and switching behavior across 0.7–3.8 GHz - essential for RF system architects validating front-end gain control before full-scale integration.

Does the EV1HMC273AMS10G include the HMC273AMS10GE IC?

Yes, the EV1HMC273AMS10G evaluation board ships with the HMC273AMS10GE IC pre-mounted in its 10-lead Mini-SO with exposed pad package. The board is fully assembled and tested, including SMA connectors, bias resistor R1, DC blocking capacitors C1/C2, and control resistors R2–R4 - ready for immediate RF measurement.

What RF substrate material is used on the EV1HMC273AMS10G?

The EV1HMC273AMS10G uses Rogers 4350B laminate, a high-frequency PCB material selected for stable dielectric constant (ε_r ≈ 3.48), low loss tangent (tan δ = 0.0037), and consistent 50 Ω impedance control up to 4 GHz - ensuring accurate RF performance measurement of the HMC273AMS10GE attenuator without substrate-induced errors.

How are the control signals connected on the EV1HMC273AMS10G?

Control signals V1–V5 for the HMC273AMS10GE are routed to header pins J3–J6 (with J3 carrying V1/V2, J4 carrying V3/V4, and J6 carrying V5), each protected by a 100 Ω series resistor (R2–R4). This configuration supports standard logic-level drive (0 V / +3–5 V) while minimizing reflections and enabling easy interfacing with FPGA or microcontroller GPIOs during evaluation.

Is thermal management addressed on the EV1HMC273AMS10G?

Yes, the EV1HMC273AMS10G implements robust thermal management: the HMC273AMS10GE's exposed paddle is soldered directly to a large internal copper ground plane, and multiple thermal vias connect top and bottom layers to dissipate heat. This matches Analog Devices' recommended layout for continuous operation at +28 dBm input power and ensures stable attenuation accuracy over temperature.