Analog Devices Inc. ADRF5031-EVALZ

Overview

ADRF5031-EVALZ from Analog Devices is an evaluation board designed to accelerate development and characterization of the ADRF5031 nonreflective silicon SPDT RF switch, supporting full 9 kHz–20 GHz operation with verified insertion loss ≤1.05 dB and isolation ≥45 dB. It enables rapid validation of high-linearity switching (P0.1dB = 35 dBm, IP3 = 62 dBm) in microwave radios, ECM systems, and test instrumentation.

For engineers reviewing the ADRF5031-EVALZ datasheet, ADRF5031-EVALZ pinout, ADRF5031-EVALZ application, or ADRF5031-EVALZ equivalent, this board provides immediate access to calibrated RF paths, dual-supply biasing (±3.3 V), CMOS/LVTTL control interface, and thermal-optimized LGA mounting-critical for evaluating hot-switching performance, power handling, and wideband impedance matching.

Technical Context

The ADRF5031-EVALZ implements a fully populated, impedance-matched reference design for the ADRF5031 SPDT switch in its native 20-terminal 3 mm × 3 mm LGA package (CC-20-21). It supports both dual-supply (VDD = +3.3 V, VSS = −3.3 V) and single-supply (VDD = +3.3 V, VSS = 0 V) configurations, with on-board decoupling (100 pF per supply rail) and direct DC-coupled RF interfaces at RFC, RF1, and RF2.

Board-level design follows Analog Devices' recommended coplanar waveguide (CPWG) layout: 50 Ω trace routing with 14 mil width / 7 mil clearance on 8 mil RO4003C, dense ground via stitching, and solder-mask-defined ground pads. The exposed pad is fully connected to internal ground planes for optimal RF return path and thermal dissipation (θJC = 110°C/W through-path).

Key Specifications

Availability

ADRF5031-EVALZ is available at Aetrix Electronics and suitable for microwave radio development, electronic warfare subsystem validation, and automated test equipment (ATE) calibration requiring stable component supply, RoHS-compliant evaluation hardware, and manufacturer-validated RF performance.

Supply support for ADRF5031-EVALZ 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, serving precision instrumentation, communications, and defense markets since 1965.

The ADRF5031-EVALZ belongs to Analog Devices' RF Switch Evaluation Platform family, engineered specifically to de-risk high-frequency switch integration-enabling fast prototyping of nonreflective, high-power SPDT routing in radar front-ends, VSAT transceivers, and broadband test systems.

FAQ

What is the primary function of the ADRF5031-EVALZ?

The ADRF5031-EVALZ is a fully assembled evaluation board for the ADRF5031 SPDT RF switch. It provides immediate access to all three RF ports (RFC, RF1, RF2) via SMA connectors, pre-routed 50 Ω CPWG traces, dual-supply biasing, and CMOS/LVTTL control logic-allowing engineers to validate insertion loss, isolation, hot-switching behavior, and linearity of the ADRF5031 across its full 9 kHz–20 GHz range without custom PCB design.

Does the ADRF5031-EVALZ support both dual-supply and single-supply operation of the ADRF5031?

Yes, the ADRF5031-EVALZ supports both configurations. It ships configured for dual-supply operation (VDD = +3.3 V, VSS = −3.3 V), but includes jumper options to reconfigure for single-supply mode (VDD = +3.3 V, VSS = 0 V). Performance trade-offs-including reduced P0.1dB (24 dBm vs. 35 dBm) and slower switching (16 µs settling vs. 5.3 µs)-are preserved as specified in the ADRF5031 datasheet Table 2.

What RF connector type is used on the ADRF5031-EVALZ?

The ADRF5031-EVALZ uses female SMA connectors for all three RF ports: RFC, RF1, and RF2. These are DC-coupled and impedance-matched to 50 Ω, enabling direct connection to signal generators, spectrum analyzers, and vector network analyzers without external bias tees or DC-blocking capacitors-provided the connected equipment maintains 0 V DC potential on the RF line.

How is thermal performance managed on the ADRF5031-EVALZ?

Thermal performance on the ADRF5031-EVALZ is managed via direct soldering of the ADRF5031's exposed LGA pad to a solid internal ground plane, reinforced with a dense array of thermal vias connecting to outer and inner ground layers. This implementation achieves the datasheet-specified θJC of 110°C/W (through path) and supports continuous operation at the ADRF5031's rated 33 dBm average RF power under proper airflow or heatsinking conditions.

Can the ADRF5031-EVALZ be used to evaluate hot-switching behavior of the ADRF5031?

Yes, the ADRF5031-EVALZ is explicitly designed to evaluate hot-switching performance. Its layout preserves the ADRF5031's specified hot-switching ratings: 35 dBm peak / 33 dBm average when switching through RFC, and 32 dBm peak / 30 dBm average when switching through RF1 or RF2-all while maintaining sub-6 µs RF settling time (0.1 dB) and >45 dB isolation across 12–20 GHz, as validated in the ADRF5031 datasheet Figures 8–11.