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ADXL344:  3-Axis, ±2 g/±4 g/±8 g/±16 g Ultralow Power Digital Accelerometer

Product Details

Product Status:Recommended for New Designs

The ADXL344 is a versatile 3-axis, digital-output, low g MEMS accelerometer. Selectable measurement range and bandwidth and configurable, built-in motion detection make it suitable for sensing acceleration in a wide variety of applications. Robustness to 10,000 g/of shock and a wide temperature range (−40°C to +85°C) enable use of the accelerometer even in harsh environments.

The ADXL344 measures acceleration 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 ADXL344 can measure the static acceleration of gravity in tilt-sensing appli-cations, as well as dynamic acceleration resulting from motion or shock. Its high resolution (3.9 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. Tap sensing detects single and double taps in any direction. Free-fall sensing detects if the device is falling. Orientation detection reports four- and six-position orientation and can trigger an interrupt upon change in orientation. These functions can be mapped individually to either of two interrupt output pins.

An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.

The ADXL344 is supplied in a small, thin, 3 mm × 3 mm × 0.95 mm, 16-terminal, plastic package.



APPLICATIONS
  • Handsets
  • Gaming and pointing devices
  • Personal navigation devices
  • Hard disk drive (HDD) protection

FEATURES and BENEFITS

  • Multipurpose accelerometer with 10- to 13-bit resolution for use in a wide variety of applications
  • Digital output accessible via SPI (3- and 4-wire) and I2C
  • Built-in motion detection features make tap, double-tap, activity, inactivity, orientation, and free-fall detection trivial
      User-adjustable thresholds
      Interrupts independently mappable to two interrupt pins
  • Low power operation down to 23 μA and embedded FIFO for reducing overall system power
  • Wide supply and I/O voltage range: 1.7 V to 2.75 V
  • Wide operating temperature range (−40°C to +85°C)
  • 10,000 g shock survival
  • Small, thin Pb free, RoHS compliant 3 mm × 3 mm × 0.95 mm LGA package

Functional Block Diagram for ADXL344

Similar Products

  • ADXL346 Similar size and operation to the ADXL344, with min/max specifications for zero-g bias and sensitivity.

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.

SampleSample & Buy

Price, packaging, availability

ADXL344 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADXL344ACCZ-RL Status: Production 16 ld LGA (3x3) 16 Ind Reel, 5000 - - E  Material Info PCN Purchase
ADXL344ACCZ-RL7 Status: Production 16 ld LGA (3x3) 16 Ind Reel, 1500 - $1.15 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.

ADXL344 Datalogger / Development Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADXL344Z-DB Status: Production Ultra Low Power Development Board $59.00 Yes -
ADXL344Z Breakout Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADXL344Z 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.

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