Analog Devices: EVAL-ADXL345Z Accelerometer Evaluation Board

atomar — Sun, 27 Oct 2013 05:57:20 GMT

Current Revision posted to Documents by atomar on 10/27/2013 5:57:20 AM

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Kit Overview

The EVAL-ADXL345ZEVAL-ADXL345Z is a simple evaluation board that allows quick evaluation of the performance of the ADXL345ADXL345 3-axis digital accelerometer. The EVAL-ADXL345Z has two sets of 0.1 inch spaced vias, for population of a 4-pin and 5-pin header, for access to all power and signal lines. The vias or headers allow the evaluation board to be attached to a prototyping board (breadboard) or attached to the PCB in an existing system.Four holes are provided for mechanical attachment of the EVAL-ADXL345Z to the application.

An external host processor is required for communication to the part. The dimensions of the EVAL-ADXL345Z are 20 mm × 20 mm with mounting holes set 15 mm × 15 mm at the corners of the printed circuit board (PCB).

The EVAL-ADXL345ZEVAL-ADXL345Z is a simple breakout board that enables easy connection of an ADXL345ADXL345 into an existing system.
The ADXL345 is a digital-output, 3-axis accelerometer whose low power consumption and built-in features make it ideal for use in a wide variety of applications. Due to its small size, the EVAL-ADXL345Z has minimal effect on performance of the system and of the accelerometer, and thus it is ideal for evaluation of the ADXL345 in an existing system.
Note that the ADXL345 must be communicated with digitally via SPI or I2C. No processor is included with the EVAL-ADXL345Z; firmware must be supplied externally by the user.
The ADXL345BCCZ.ADXL345BCCZ. is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 mg/LSB) enables measurement of inclination changes less than 1.0°

Note: The EVAL-ADXL345ZEVAL-ADXL345Z is not reverse polarity protected. Reversing the VS or VDD I/O supply and GND pins can cause damage to the ADXL345ADXL345. Dropping the EVAL-ADXL345Z on a hard surface can generate several thousand g’s of acceleration, which may exceed the data sheet absolute maximum limits.

Key Applications: Handsets, Medical instrumentation, Gaming and pointing devices Industrial instrumentation, Personal navigation devices, Hard disk drive (HDD) protection.

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Technical Documents

Learning Center

Type	Description
User Guide	ADI: User Guide for iMEMS ADXL345 Inertial Sensor Datalogger and Development Board
Datasheet	ADI: Data Sheet for ADXL345 - 3-Axis, ±2 g/±4 g/±8 g/±16 g Digital Accelerometer
Design Techniques	ADI: Design Techniques for Sensing Low-g Acceleration Using the ADXL345 Digital Accelerometer Connected to the ADuC7024 Precision Analog Microcontroller
Application Note	ADI: Quick Start Guide ADXL345
Application Note	ADI: AN-1063 - Application Note for Oversampling Technique to Improve ADXL345 Output Resolution
Application Note	ADI: AN-1023 - Application Note for Fall Detection Application by Using 3-Axis Accelerometer ADXL345

Design Elements

Type	Description
Schematics	ADI: Schematic File for ADXL345
Layout	ADI: Layout File for ADXL345 Satellite PCB
CAD Model	ADI: CAD Model for ADXL345BCCZ

Video

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Kit Features

Features of ADXL345ADXL345:

Ultralow power: as low as 23 uA in measurement mode and 0.1 uA in standby mode at VS = 2.5 V (typical)
Power consumption scales automatically with bandwidth
User-selectable resolution
- Fixed 10-bit resolution
- Full resolution, where resolution increases with g range, up to 13-bit resolution at ±16 g (maintaining 4 mg/LSB scale factor in all g ranges)
Patent pending, embedded memory management system with FIFO technology minimizes host processor load
Single tap/double tap detection
Activity/inactivity monitoring
Free-fall detection
Supply voltage range: 2.0 V to 3.6 V
I/O voltage range: 1.7 V to VS
SPI (3- and 4-wire) and I2C digital interfaces
Flexible interrupt modes mappable to either interrupt pin
Measurement ranges selectable via serial command
Bandwidth selectable via serial command
Wide temperature range (-40°C to +85°C)
10,000 g shock survival
Pb free/RoHS compliant
Small and thin: 3 mm × 5 mm × 1 mm LGA package

Kit Contents

The Analog Devices EVAL-ADXL345ZEVAL-ADXL345Z accelerometer evaluation board supplied with below contents:

EVAL-ADXL345ZEVAL-ADXL345Z Accelerometer Evaluation Board

Tags: eval-adxl345, eval-adxl345z, accelerometer, adxl345, evaluation_board, analog_devices