ADXL344
RECOMMENDED FOR NEW DESIGNS3-Axis, ±2 g/±4 g/±8 g/±16 g Ultralow Power Digital Accelerometer
- Part Models
- 2
- 1ku List Price
- Starting From $1.40
Part Details
- 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
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 applications, 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
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Product Information 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADXL344ACCZ-RL | 16-Lead LGA (3mm x 3mm) | ||
| ADXL344ACCZ-RL7 | 16-Lead LGA (3mm x 3mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 26, 2014 - 14_0079 ADXL343 and ADXL344 Die Revision |
||
| ADXL344ACCZ-RL | ||
| ADXL344ACCZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Real Time Eval System for Digital Output Sensor
Resources
Software
ADXL344 Datalogger / Development Board
Resources
Software
ADXL344 Breakout Board