Analog Devices: EVAL-ADXL345Z Accelerometer Evaluation Board

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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


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


Design Elements


SchematicsADI: Schematic File for ADXL345
LayoutADI: Layout File for ADXL345 Satellite PCB
CAD ModelADI: CAD Model for ADXL345BCCZ


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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


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Kit Contents


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


  • EVAL-ADXL345ZEVAL-ADXL345Z Accelerometer Evaluation Board

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