Overview
Features and Benefits
- Ultralow power: as low as 23 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 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
ADXL345-EP supports defense and aerospace applications (AQEC standard)
- Download ADXL345-EP data sheet (pdf)
- Extended industrial 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
- V62/12657 DSCC Drawing Number
Product Details
The ADXL345 is a small, thin, low power, 3-axis accelerometer 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 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 by comparing the acceleration on any axis with user-set thresholds. 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.
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)
APPLICATIONS
- Handsets
- Medical instrumentation
- Gaming and pointing devices
- Industrial instrumentation
- Personal navigation devices
- Hard disk drive (HDD) protection
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (4)
Documentation & Resources
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MIKROE-1194, Click Board, Accel Click7/15/2019
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AN-1588: Sensing Low-g Acceleration Using the ADXL345 Digital Accelerometer Connected to the ADuC7024 Precision Analog Microcontroller (Rev. A)10/25/2018
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AN-1057: Using an Accelerometer for Inclination Sensing2/14/2015
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AN-1077: ADXL345 Quick Start Guide (Rev. A)6/18/2010
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AN-1063: Oversampling Technique to Improve ADXL345 Output Resolution (Rev. 0)5/10/2010
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AN-1025: Utilization of the First In, First Out (FIFO) Buffer in Analog Devices, Inc. Digital Accelerometers (Rev. 0)6/28/2009
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Inclinometer Design Desktop Application8/3/2022WIKI
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Best Engineering Practices When Using ADXL Accelerometers3/31/2021WIKI
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FAQs7/26/2017
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MEMS Accelerometers for Smart Infrastructure7/9/2021 -
ADXL345 Development Board11/28/2018 -
Throwable Panoramic Ball Camera uses the ADXL345 Accelerometer11/28/2018
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Enabling Robust Wired Condition-Based Monitoring for Industry 4.0—Part 211/1/2019
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Choose the Right Accelerometer for Predictive Maintenance6/1/2019
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Choosing the Most Suitable MEMS Accelerometer for Your Application—Part 110/1/2017 Analog Dialogue
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The Five Motion Senses: Using MEMS Inertial Sensing to Transform Applications3/1/2017
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Full-Featured Pedometer Design Realized with 3-Axis Digital Accelerometer6/1/2010 Analog Dialogue
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Free and Open-Source Software—An Analog Devices Perspective3/1/2010 Analog Dialogue
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Detecting Human Falls with a 3-Axis Digital Accelerometer7/1/2009 Analog Dialogue
Software & Systems Requirements
Tools & Simulations
IBIS Model
IBS
ADXL345 - IBIS Model
229.63 K
Reference Designs (2)
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 |
|---|---|---|---|---|
| ADXL345BCCZ | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL345BCCZ-RL | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL345BCCZ-RL7 | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL345TCCZ-EP | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL345TCCZ-EP-RL | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| ADXL345TCCZ-EP-RL7 | Material Declaration | Reliability Data | 14-Lead LGA (5mm x 3mm) | |
| Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
ADXL345 Discussions
RE: What are the ADXL202, ADXL210, and ADXL345's built-in filtering settings?
6 day(s) ago in MEMS Inertial Sensors
Sample & Buy
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Evaluation Boards
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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.