Analog Devices Inc. ADXL320EB

Overview

ADXL320EB from Analog Devices is an evaluation board designed for rapid prototyping and performance validation of the ADXL320 dual-axis ±5 g analog-output accelerometer. It provides direct access to VDD, XOUT, YOUT, SELF TEST, and COMMON pins via a 5-pin 0.1-inch header and supports mechanical mounting via four corner holes on a 20 mm × 20 mm PCB with 15 mm × 15 mm hole spacing.

For engineers reviewing the ADXL320EB datasheet, ADXL320EB pinout, ADXL320EB application, or ADXL320EB equivalent, this board enables quick bandwidth tuning (default 50 Hz via 100 nF C2/C3), breadboard integration, and functional verification of acceleration sensing in motion-triggered systems without custom PCB design.

Technical Context

The ADXL320EB implements a passive analog signal conditioning interface for the ADXL320 IC, with factory-installed 100 nF capacitors (C2, C3) at XOUT and YOUT to set default low-pass bandwidth at 50 Hz. The board's schematic includes a 0.1 µF decoupling capacitor (C1) on VDD and exposes all five functional terminals of the ADXL320 sensor IC.

No active components or microcontroller are present - the board is purely passive, relying entirely on the host system for power supply (2.4 V to 6 V), ground reference, and analog signal acquisition. Reverse polarity on +V and GND is not protected and may damage the mounted ADXL320 device.

Key Specifications

Availability

ADXL320EB is available at Aetrix Electronics and suitable for motion-sensing evaluation, inertial prototype validation, and educational labs requiring stable component supply and documented interface compatibility with ADXL320-based designs.

Supply support for ADXL320EB 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 company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control applications.

The ADXL320EB belongs to Analog Devices' evaluation board product line, developed specifically to accelerate development cycles for MEMS accelerometer integration in low-g motion detection, tilt sensing, and vibration monitoring systems.

FAQ

What is the primary function of the ADXL320EB?

The ADXL320EB is a passive evaluation board that provides physical and electrical interface access to the ADXL320 dual-axis ±5 g analog accelerometer. It does not contain active circuitry - its role is to simplify connection, mounting, and bandwidth configuration for lab testing and prototype validation of the ADXL320 IC in real-world motion sensing scenarios.

Does the ADXL320EB include the ADXL320 IC?

Yes, the ADXL320EB includes a factory-mounted ADXL320 dual-axis accelerometer IC. The board is not a bare PCB - it is a fully assembled evaluation platform with the sensor IC, three 0.1 µF capacitors (C1, C2, C3), and a 5-pin header pre-soldered and tested per Analog Devices Rev. 0 specification.

What is the default analog bandwidth of the ADXL320EB and how is it set?

ADXL320EB has a default analog bandwidth of 50 Hz, achieved by two factory-installed 100 nF capacitors (C2 and C3) connected to the XOUT and YOUT pins of the ADXL320 IC. Users can modify this bandwidth by replacing C2 and C3 with different capacitance values, following the RC filter relationship defined in the ADXL320 datasheet.

Can the ADXL320EB be powered directly from a 3.3 V microcontroller development board?

Yes, the ADXL320EB accepts 3.3 V DC as a valid supply voltage since the ADXL320 IC operates across 2.4 V to 6 V. However, the board lacks reverse-polarity protection - correct orientation of +V and GND connections is mandatory to avoid damaging the ADXL320 IC on the ADXL320EB.

What mechanical mounting options does the ADXL320EB support?

The ADXL320EB features four 2.5 mm diameter mounting holes positioned at the corners of the 20 mm × 20 mm PCB, forming a 15 mm × 15 mm square pattern. This allows secure mechanical attachment using M2 screws or similar fasteners to enclosures, test fixtures, or motion platforms during vibration or tilt experiments.