Analog Devices Inc. AD8354-EVALZ

Overview

AD8354-EVALZ from Analog Devices is an evaluation board designed to characterize and validate the AD8354 RF gain block - a broadband, fixed-gain (20 dB), 1 MHz to 2.7 GHz linear amplifier with 50 Ω input/output matching, 4.8 dBm output power at 900 MHz (5 V supply), and 4.4 dB noise figure. It supports rapid prototyping in cellular, CATV, and wireless transceiver signal chains.

For engineers reviewing the AD8354-EVALZ datasheet, AD8354-EVALZ pinout, AD8354-EVALZ application, or AD8354-EVALZ equivalent, this board enables immediate RF performance validation of the AD8354 amplifier under real-world 50 Ω system conditions - including gain flatness, OIP3, P1dB, and reverse isolation across frequency - without custom PCB design.

Technical Context

The AD8354-EVALZ implements the AD8354's recommended reference design per Analog Devices' Rev. E datasheet: single-supply operation (2.7 V–5.5 V), integrated 100 nH RF choke (L1) for 3 V biasing, dual-stage 50 Ω-coupled topology, and optimized decoupling (100 pF + 0.47 µF at VPOS). It uses 0603-size passive components and maintains the AD8354's exposed paddle thermal path to ground.

Board layout strictly follows the AD8354's grounding requirements - low-inductance connections to COM1 (Pins 1 & 8), COM2 (Pins 4 & 5), and the exposed paddle - ensuring stable operation and accurate S-parameter measurement up to 2.7 GHz. Input/output are SMA-connected with 1000 pF AC-coupling capacitors (C1/C2).

Key Specifications

Availability

AD8354-EVALZ is available at Aetrix Electronics and suitable for RF front-end development, transmitter predriver validation, LO buffer characterization, and broadband amplifier testing requiring stable component supply and traceable evaluation hardware.

Supply support for AD8354-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, industrial, and automotive markets since 1965.

The AD8354-EVALZ belongs to Analog Devices' RF Amplifier Evaluation Platform family, engineered to accelerate time-to-test for broadband gain blocks used in wireless infrastructure, test equipment, and high-frequency signal conditioning applications.

FAQ

What is the primary purpose of the AD8354-EVALZ?

The AD8354-EVALZ is a fully assembled and tested evaluation board specifically built to evaluate the AD8354 RF gain block. It provides standardized 50 Ω SMA interfaces, proper biasing (including optional 100 nH choke for 3 V operation), and verified grounding to enable accurate RF measurements - such as gain, OIP3, P1dB, and S-parameters - across its full 1 MHz to 2.7 GHz range without custom layout.

Does the AD8354-EVALZ support both 3 V and 5 V operation of the AD8354?

Yes, the AD8354-EVALZ supports both supply configurations. At 5 V, the board operates the AD8354 directly with no external choke required. At 3 V, it includes footprint and silkscreen for a 100 nH RF choke (L1) between VOUT and VPOS - matching the datasheet-recommended configuration to maintain high linearity and output power. The board's decoupling (100 pF + 0.47 µF) is optimized for both voltages.

How is grounding implemented on the AD8354-EVALZ to ensure stable RF performance?

The AD8354-EVALZ implements strict grounding per the AD8354 datasheet: Pins 1 and 8 (COM1) and Pins 4 and 5 (COM2) are each tied to a low-inductance ground plane, and the AD8354's exposed thermal paddle is soldered directly to a large, solid ground copper area. This multi-point grounding minimizes impedance and prevents oscillation, enabling stable operation and repeatable S-parameter measurements up to 2.7 GHz.

Can the AD8354-EVALZ be used for low-frequency applications below 100 MHz?

Yes - the AD8354-EVALZ's 1000 pF input/output coupling capacitors (C1/C2) support operation down to 300 kHz, as validated in Figure 40 of the AD8354 datasheet. For enhanced low-frequency response (e.g., <10 MHz), users may replace C1/C2 with higher-value capacitors (e.g., 0.1 µF), but the default configuration already enables functional evaluation from 300 kHz to 2.7 GHz.

Where can I find the schematic, layout files, and bill of materials for the AD8354-EVALZ?

The complete AD8354-EVALZ schematic, PCB layout (Gerber), and bill of materials are provided in the "Evaluation Board" section (Page 15) of the official AD8354 Rev. E datasheet (D02722-0-11/13(E)), available for download at analog.com. The schematic (Figure 41) shows all component values, footprints (0603), and critical layout notes - including exposed paddle connection and choke placement guidance.