ADXL345 Series

3-Axis, ±2g/±4g/±8g/±16gDigital Accelerometer

Catalog

3-Axis, ±2g/±4g/±8g/±16gDigital Accelerometer

Part	Interface	Sensitivity	Supplied Contents	Sensor Type	Sensing Range	Utilized IC / Part	Voltage - Supply [Max]	Voltage - Supply [Min]	Output Type	Sensitivity (LSB/g)	Axis [z]	Axis [y]	Axis [x]	Type	Package / Case	Mounting Type	Bandwidth [Min]	Bandwidth [Max]	Features	Acceleration Range	Acceleration Range [Min]	Acceleration Range [Max]	Operating Temperature [Max]	Operating Temperature [Min]
Analog Devices EVAL-ADXL345Z-DB	I2C Serial SPI	32 LSB/g 64 LSB/g 128 LSB/g 256 LSB/g	Board(s)	Accelerometer 3 Axis	2 g 4 g 8 g 16 g	ADXL345	3.6 V	2 V
Analog Devices EVAL-ADXL345Z-S	I2C Serial SPI	32 LSB/g 64 LSB/g 128 LSB/g 256 LSB/g	Board(s)	Accelerometer 3 Axis	2 g 4 g 8 g 16 g	ADXL345	3.6 V	2 V
Analog Devices EVAL-ADXL345Z	I2C Serial SPI	32 LSB/g 64 LSB/g 128 LSB/g 256 LSB/g	Board(s)	Accelerometer 3 Axis	2 g 4 g 8 g 16 g	ADXL345	3.6 V	2 V
Analog Devices ADXL345DC							3.6 V	2 V	I2C SPI	32 LSB/g 256 LSB/g	Z	Y	X	Digital	14-VFLGA	Surface Mount	6.25 Hz	3.2 kHz	Adjustable Bandwidth Selectable Scale	4 g 8 g 16 g	-2 g	2 g	85 °C	-40 °C

Catalog

3-Axis, ±2g/±4g/±8g/±16gDigital Accelerometer

Key Features

• 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 resolutionFixed 10-bit resolutionFull resolution, where resolution increases withgrange, up to 13-bit resolution at ±16g(maintaining 4 mg/LSB scale factor in allgranges)

• Fixed 10-bit resolution

• Full resolution, where resolution increases withgrange, up to 13-bit resolution at ±16g(maintaining 4 mg/LSB scale factor in allgranges)

• 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)

• 10,000gshock survival

• Pb free/RoHS compliant

• Small and thin: 3 mm × 5 mm × 1 mm LGA package

• DownloadADXL345-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

Description

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)APPLICATIONSHandsetsMedical instrumentationGaming and pointing devicesIndustrial instrumentationPersonal navigation devicesHard disk drive (HDD) protection