Overview
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, 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 voltage range: 2.0 V to 3.6 V
- I/O voltage 1.7 V to VS
- Wide operating temperature range (−40°C to +85°C)
- 10,000 g shock survival
- Small, thin, Pb free, RoHS compliant 3 mm × 5 mm × 1 mm LGA package
Product Details
The ADXL343 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 ADXL343 measures acceleration with high resolution (13-bit) measurement at up to ±16g. Digital output data is formatted as 16-bit twos complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface. The ADXL343 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. 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 ADXL343 is supplied in a small, thin, 3 mm × 5 mm × 1 mm, 14-terminal, plastic package.
APPLICATIONS
- Handsets
- Gaming and pointing devices
- Hard disk drive (HDD) protection
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (3)
Documentation & Resources
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Inclinometer Design Desktop Application8/3/2022WIKI
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Best Engineering Practices When Using ADXL Accelerometers3/31/2021WIKI
Tools & Simulations
IBIS Models
IBS
ADXL343 - IBIS Model
229.63 K
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADXL343BCCZ | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL343BCCZ-RL | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL343BCCZ-RL7 | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
ADXL343 Discussions
RE: ADXL343 About the max value of 0g-offset temperature drift and Sensitivity temperature drift
14 week(s) ago in MEMS Inertial Sensors
Sample & Buy
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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.