ADXL345 |
3-Axis, ±2 g/±4 g/±8 g/±16 g Digital Accelerometer
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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)
- See data sheet for additional features.
- 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 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)
Product Lifecycle
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.
EVAL-ADXL345Z
EVAL-ADXL345Z Circuit Diagram
Product Details
The EVAL-ADXL345Z is a simple breakout board that enables easy connection of an ADXL345 into an existing system. The ADXL345 is a digital-output, 3-axis accelerometer whose low power consumption and built-in features make it ideal for use in a wide variety of applications. Due to its small size, the EVAL-ADXL345Z has minimal effect on performance of the system and of the accelerometer, and thus it is ideal for evaluation of the ADXL345 in an existing system. Note that the ADXL345 must be communicated with digitally via SPI or I2C. No processor is included with the EVAL-ADXL345Z; firmware must be supplied externally by the user. For evaluation boards that include a processor, please see the EVAL-ADXL345Z-M and the ADXL345Z-DB.
EVAL-ADXL345Z-DB
EVAL-ADXL345Z-DB Circuit Diagram
Product Details
The 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. Powered by two AAA batteries, the board is completely untethered and integrates seamlessly into portable applications. Logged data is stored on a MicroSD memory card, providing essentially unlimited memory capacity and operating system versatility. Data is stored in a text (.txt) file, so no software installation is required to operate the board or read data. A 2GB MicroSD card and a USB MicroSD card reader are provided with the board.
Additionally, the board is fully programmable, providing a hardware platform on which firmware can be tested in parallel with development of application hardware. Communications and processing are performed by an ARM7-based ADuC7024 micro-controller, and firmware is written in C. A programming cable is provided with the board, and a development environment and header files are supplied on this page. Finally, the platform can be duplicated in the final application, having already been tested with the application firmware. Schematics and layout can be found under the Supporting Documentation tab and can be used freely in your application.
Note that this board is not configured to display real-time data. For real-time evaluation of the ADXL345, please refer to the Inertial Sensor Evaluation Board. For a simple ADXL345 Breakout Board, refer to the EVAL-ADXL345Z.
Resources
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ADXL345 Input 3-Axis Digital Accelerometer Linux Driver
WIKI
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UG-065: Evaluation Board User Guide for ADXL345
PDF
iMEMS ADXL345 Inertial Sensor Datalogger and Development Board
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ADXL345Z 3-Axis, ±2 g/±4 g/±8 g/±16 g Digital Accelerometer Evaluation Board (EVAL-ADXL345Z)
PDF
Software
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Uploader: Use this program to upload firmware to the microcontroller ZIP
186.07 K
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Software Tools: Keil IDE for creating new firmware applications ZIP
185.36 M
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Additional Firmware: Download firmware to operate the datalogger other datarates / g-ranges. ZIP
0.98 M
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Firmware: Download the latest datalogger firmware here. Instructions for updating firmware are included in the user guide ZIP
17.69 K
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Sample Project: Click here to see an example of a project using the development kit ZIP
1.87 M
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Plotting Tool: A handy tool for plotting your data output XLS
36.5 K
EVAL-MST-ISEB
EVAL-MST-ISEB Circuit Diagram
Product Details
The ISEB is an universal main board and is intended to be used with various satellites of Analog Devices inertial sensors, including analog and digital accelerometers, as well as gyroscopes. The different products are evaluated by means of separate GUIs that are customized for performance and characterization measurements relevant to the inertial sensor being evaluated.
The EVAL-ADxZ-M system contains the ISEB and the EVAL-ADxZ-S satellite. Also included is an USB A to Mini-B cable to connect the ISEB to a PC and an 18-inch, 20-pin ribbon cable to connect the ISEB to the satellite.
Software
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ADXL313 Evaluation Software for EVAL-MST-ISEB ZIP
7.73 M
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ADXL312 Evaluation Software for EVAL-MST-ISEB ZIP
7.72 M
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ADXL375 Evaluation Software for EVAL-MST-ISEB ZIP
7.8 M
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ADXRS290 Evaluation Software for EVAL-MST-ISEB ZIP
6.71 M
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ADXL350 Evaluation Software for EVAL-MST-ISEB ZIP
7.84 M
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ADXL346 Evaluation Software for EVAL-MST-ISEB ZIP
7.88 M
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ADXL344 Evaluation Software for EVAL-MST-ISEB ZIP
7.87 M
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ADXL343 Evaluation Software for EVAL-MST-ISEB ZIP
7.92 M
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ADXL345 Evaluation Software for EVAL-MST-ISEB ZIP
7.82 M
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ADXL345-EP: Enhanced Product Data Sheet (Rev. B) PDF
350.59 K
PDF
350.59 K
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UG-065: Evaluation Board User Guide for ADXL345 PDF
iMEMS ADXL345 Inertial Sensor Datalogger and Development Board
254 kB
PDF
254 kB
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PDF
702 kB
CN0133
CN0133 Circuit Diagram
Features & Benefits
- Programmable accelerometer up to 16g
- Digital output easily connects to the sensor
- Built in FIFO reduces work for processor
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.
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.
