Add to Signal Chain Designer

ADXL345:  3-Axis, ±2 g/±4 g/±8 g/±16 g Digital Accelerometer

Product Details


The ADXL345 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16 g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.

The ADXL345 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°.

Several special sensing functions are provided. Activity and inactivity sensing detect the presence or lack of motion and if the acceleration on any axis exceeds a user-set level. Tap sensing detects single and double taps. Free-fall sensing detects if the device is falling. These functions can be mapped to one of two interrupt output pins. An integrated, patent pending 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor intervention.

Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.

The ADXL345 is supplied in a small, thin, 3 mm × 5 mm × 1 mm, 14-lead, plastic package.

  • ADXL345-EP Supports defense and aerospace applications (AQEC)

FEATURES and BENEFITS

  • Chinese data sheet available
  • Ultralow power: as low as 40 μA in measurement mode and 0.1 μA 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)
  • Embedded, patent pending FIFO technology minimizes host processor load
  • Tap/double tap detection
  • Activity/inactivity monitoring
  • Please see data sheet for additional features.

ADXL345-EP Supports defense and areospace applications (AQEC)

  • Download ADXL345-EP Data Sheet
  • Temperature range:
    −55°C to +105°C
  • Controlled manufacturing baseline
  • One assembly/test site
  • One fabrication site
  • Enhanced product change notification
  • Qualification data available on request

ADXL345 Functional Block Diagram

Similar Products

  • ADXL343: Similar size and operation to ADXL345, with typical specifications only (no min/max) and lower cost.
  • ADXL346: Smaller than ADXL345 (3mm x 3mm) and accepts a lower supply voltage range, down to 1.8V.

ADXL345 Development Board

The iMEMS® ADXL345 Development Board (EVAL-ADXL345Z-DB) is an easy-to-use tool that facilitates prototyping by providing a platform that can be duplicated in the final application. The development board is pre-configured as a datalogger that can be used to gather data for refining algorithms, tuning thresholds, and generally familiarizing oneself with accelerometer data. A suite of software provided with the board allows the user to reprogram the board per the user's needs, and a set of standard headers facilitates the addition of expansion boards. Learn more.

OF NOTE ...

2010 Golden Mousetrap Winner

Documentation

Title Content Type File Type
ADXL345: 3-Axis, ±2 g/±4 g/±8 g/±16 g Digital Accelerometer Data Sheet (Rev D, 02/2013) (pdf, 546 kB) Data Sheets PDF
AN-1077: ADXL345 Quick Start Guide  (pdf, 99 kB) Application Notes PDF
AN-1063: Oversampling Technique to Improve ADXL345 Output Resolution  (pdf, 89 kB) Application Notes PDF
AN-1057: Using an Accelerometer for Inclination Sensing  (pdf, 168 kB) Application Notes PDF
AN-1025: Utilization of the First In, First Out (FIFO) Buffer in Analog Devices, Inc. Digital Accelerometers  (pdf, 138 kB) Application Notes PDF
AN-688: Phase and Frequency Response of iMEMS® Accelerometers and Gyros  (pdf, 135 kB) Application Notes PDF
CN-0133: Sensing Low-g Acceleration Using the ADXL345 Digital Accelerometer Connected to the ADuC7024 Precision Analog Microcontroller  (pdf, 112 kB) Circuit Note PDF
Hillcrest Labs' Freespace
Hillcrest Labs' patented Freespace motion control technology utilizes ADI's iMEMS (ADXL345) motion sensing technology. Freespace senses motion in three dimensions and precisely translates human motion into on-screen cursor movement.
Videos HTML
ADXL345 Development Board
ADXL345 MEMS-based Accelerometer Development Board. Analog Devices' Nitzan Gadish describes how to set-up and use the ADXL345 development board.
Videos HTML
iMEMS® Motion Sensors featuring the ADXL345
The ADXL345 is a new low power three-axis digital iMEMS motion sensor. The demo shows the device's unique power saving features and extraordinary resolution.
Videos HTML
UG-065: Evaluation Board User Guide for ADXL345  (pdf, 254 kB)
iMEMS ADXL345 Inertial Sensor Datalogger and Development Board
User Guides PDF
UG-015: iMEMS ADXL345 Inertial Sensor Evaluation System  (pdf, 702 kB) User Guides PDF
Full-Featured Pedometer Design Realized with 3-Axis Digital Accelerometer  (pdf, 598 kB)
Analog Dialogue, June 2010
Analog Dialogue PDF
Detecting Human Falls with a 3-Axis Digital Accelerometer
(Analog Dialogue, Vol. 43, July 2009)
Analog Dialogue HTML
Full-Featured Pedometer Design Realized with 3-Axis Digital Accelerometer  (pdf, 598 kB)
Analog Dialogue, June 2010
Technical Articles PDF
The Five Motion Senses: MEMS Inertial Sensing to Transform Applications
The introduction of robust, low-cost MEMS accelerometers and gyroscopes enables the incorporation of motion sensing into a greater variety of applications.
(Sensors, 1/1/2010
Technical Articles HTML
Human Fall Detection Using New MEMS Accelerometer Technology
For humans, an unobserved fall can have very serious consequences. Statistics show that the majority of serious consequences are not the direct result of falling, but rather are due to a delay in assistance and treatment. Post-fall consequences can be greatly reduced if relief personnel can be alerted in time.
(ECN, December 9, 2009)
Technical Articles HTML
Accelerometer Specifications - Quick Definitions Technical Documentation HTML
Analog Devices’ 256-Channel, 16-Bit Digital X-Ray Analog Front End Delivers Industry’s Best Combination of Noise, Power and Image Quality (27 Nov 2012) Press Releases HTML
Basic MEMS Terminology  (pdf, 40 kB) Overview PDF
What are the shock ratings or limits for the MEMS devices? FAQs/RAQs HTML
What is an inertial sensor? FAQs/RAQs HTML
What is an accelerometer and a gyroscope, and how do they differ? FAQs/RAQs HTML
Where would you use an accelerometer? FAQs/RAQs HTML
Where would you use a gyroscope? FAQs/RAQs HTML
What are the major error sources for inertial sensors? FAQs/RAQs HTML
What is the limit of resolution of an inertial sensor? FAQs/RAQs HTML
I need finer resolution. What do I do? FAQs/RAQs HTML
MEMS Accelerometer Applications, what's Fantasy and what's Reality? FAQs/RAQs HTML
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

Design Tools,Models,Drivers & Software

Title Content Type File Type
Accelerometer FIFO Calculator
Help configure the ADXL345 and ADXL346 digital accelerometer devices
Design Calculators HTML
ADXL345 Pmod Xilinx FPGA Reference Design FPGA HDL HTML
ADXL345 - No-OS Driver for Renesas Microcontroller Platforms Device Drivers HTML
ADXL345 - No-OS Driver for Microchip Microcontroller Platforms Device Drivers HTML
ADXL345 Input 3-Axis Digital Accelerometer Linux Driver Device Drivers HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

Product Recommendations & Reference Designs

Engineered. Tested. Ready to Integrate.
Learn More

SampleSample & Buy

Price, packaging, availability

ADXL345 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADXL345BCCZ Status: Production 14 ld LGA (3x5x1.0mm) 14 Ind Tray, 490 $3.54 $3.04 E  Material Info PCN Purchase Sample
ADXL345BCCZ-RL Status: Production 14 ld LGA (3x5x1.0mm) 14 Ind Reel, 5000 - - E  Material Info PCN Purchase
ADXL345BCCZ-RL7 Status: Production 14 ld LGA (3x5x1.0mm) 14 Ind Reel, 1500 - $3.04 E  Material Info PCN Purchase
ADXL345TCCZ-EP Status: Production LGA/CASON/CH ARRY SO NO LD 14 Ind Tray, 490 $8.16 $7.00 E  Material Info PCN Purchase
ADXL345TCCZ-EP-RL Status: Production LGA/CASON/CH ARRY SO NO LD 14 Ind Reel, 5000 - $7.00 E  Material Info PCN Purchase
ADXL345TCCZ-EP-RL7 Status: Production LGA/CASON/CH ARRY SO NO LD 14 Ind Reel, 1500 - $7.00 E  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADXL345 Datalogger / Development Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADXL345Z-DB Status: Production Ultra Low Power Development Board $59.00 Yes -
ADXL345Z Breakout Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADXL345Z Status: Production Breakout Board $30.00 Yes -
Real Time Eval System for Digital Output Sensor
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADXL313-Z-M Status: Production Mother Board and Satellite Board $249.00 Yes -
EVAL-ADXL313-Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXL343Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXL343Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXL344Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXL344Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXL312Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXL312Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXL345Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXL345Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXL346Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXL346Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXRS450Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXRS450Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXRS453Z-M Status: Production Mother Board $249.00 Yes -
EVAL-ADXRS453Z-S Status: Production Satellite Board $149.00 Yes -
EVAL-ADXRS800Z-M Status: Production Evaluation Board $249.00 Yes -
EVAL-ADXRS800Z-S Status: Production Evaluation Board - Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close