Analog Devices Inc. EVAL-ADG919EBZ

Overview

EVAL-ADG919EBZ from Analog Devices is an evaluation board designed for the ADG919 ultra-wideband SPDT CMOS RF switch, supporting RF signal path validation up to 1 GHz with 50 Ω impedance-matched SMA interfaces, on-board VDD (1.65 V–2.75 V) and CMOS/LVTTL-compatible CTRL logic, and calibrated RF-through path for insertion loss reference.

For engineers reviewing the EVAL-ADG919EBZ datasheet, EVAL-ADG919EBZ pinout, EVAL-ADG919EBZ application, or EVAL-ADG919EBZ equivalent, this board enables rapid characterization of high-isolation, low-loss RF switching performance in lab and pre-production environments using standard network analyzers and DC power supplies.

Technical Context

The EVAL-ADG919EBZ implements a four-layer FR4 PCB (ε_r ≈ 4.3, thickness 0.062") with coplanar waveguide transmission lines (trace width 0.052", ground clearance 0.030", dielectric thickness 0.029", copper thickness 0.0014") to maintain 50 Ω impedance across J1 (RFC), J2 (RF1), and J3 (RF2).

It supports dual-mode operation: when configured for ADG919, CTRL logic selects between RF1→RFC (CTRL = 1) or RF2→RFC (CTRL = 0); onboard decoupling includes one 10 μF tantalum capacitor on VDD and two 10 pF ceramic capacitors near VDD/CTRL pins.

Key Specifications

Availability

EVAL-ADG919EBZ is available at Aetrix Electronics and suitable for RF front-end prototyping, wireless transceiver validation, cellular infrastructure testing, and IoT module development requiring stable component supply and traceable evaluation hardware.

Supply support for EVAL-ADG919EBZ 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 digital signal processing semiconductors, headquartered in Norwood, MA.

The EVAL-ADG919EBZ belongs to Analog Devices' RF & Microwave Evaluation Platform family, engineered to accelerate design-in of wideband switches in communications, test equipment, and defense electronics.

FAQ

What is the primary function of the EVAL-ADG919EBZ?

The EVAL-ADG919EBZ is a dedicated evaluation board for the ADG919 SPDT RF switch, enabling lab-based characterization of insertion loss, isolation, and switching speed up to 1 GHz. It provides calibrated 50 Ω paths, proper biasing, and layout-optimized RF routing so engineers can validate the ADG919's performance without custom PCB design. The EVAL-ADG919EBZ does not operate as a standalone product but serves exclusively as a test interface for the ADG919 die.

Which RF ports correspond to the ADG919 pins on the EVAL-ADG919EBZ?

On the EVAL-ADG919EBZ, J1 is the RFC (common RF port), J2 is RF1 (switch input 1), and J3 is RF2 (switch input 2). These map directly to the ADG919's RFC, RF1, and RF2 terminals per its pinout. The CTRL signal is applied via J7, and VDD is supplied through J6 - matching the ADG919's control and power interface requirements.

Does the EVAL-ADG919EBZ support both absorptive and reflective switch modes?

Yes - the EVAL-ADG919EBZ is designed for the ADG919, which operates in either absorptive or reflective mode depending on external termination. When RFC is terminated in 50 Ω, the ADG919 behaves as an absorptive switch; when unterminated, it functions reflectively. The EVAL-ADG919EBZ's layout preserves this behavior with uncommitted RF terminations and minimal parasitic loading.

Can the EVAL-ADG919EBZ be used to evaluate the ADG901/ADG902 or ADG918?

Yes - the EVAL-ADG919EBZ shares the same physical board design with EVAL-ADG901EBZ/EVAL-ADG902EBZ/EVAL-ADG918EBZ (UG-676 Rev. B confirms unified hardware). Jumpers and layout allow reconfiguration: for ADG901/ADG902, J2 becomes RF2 output and J3 is grounded; for ADG918, pinout and truth table match ADG919. The EVAL-ADG919EBZ is fully compatible with all four devices.

What calibration capability does the EVAL-ADG919EBZ provide?

The EVAL-ADG919EBZ includes a dedicated RF-through path between J4 and J5 - a direct 50 Ω transmission line with identical construction to the active signal paths. This allows users to measure and subtract PCB insertion loss from raw S-parameter data, ensuring accurate de-embedded characterization of the ADG919 alone. No additional calibration standards are required for basic relative measurements.