Datasheet Analog Devices ADXL345 — 数据表

REVISIONS
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PAGE 1 2 3 PMIC N/A PREPARED BY
Phu H. Nguyen Original date of drawing
YY MM DD CHECKED BY 13-04-08 Phu H. Nguyen
APPROVED BY
Thomas M. Hess
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AMSC N/A 4 CODE IDENT. NO. 5 6 7 8 9 10 DLA LAND AND MARITIME
COLUMBUS, OHIO 43218-3990
http://www.landandmaritime.dla.mil/ TITLE
MICROCIRCUIT, DIGITAL, 3-AXIS, ±2 g/±4 g/±8
g/±16 g DIGITAL ACCELEROMETER,
MONOLITHIC SILICON
DWG NO. V62/12657 16236
PAGE 1 OF 10
5962-V060-13 1. SCOPE …

Data Sheet 3-Axis, ±2 g/±4 g/±8 g/±16 g
Digital Accelerometer
ADXL345 FEATURES GENERAL DESCRIPTION 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 …

3-Axis, ±2 g/±4 g/±8 g/±16 g
Digital Accelerometer ADXL345-EP Enhanced Product
FEATURES GENERAL DESCRIPTION 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 from 10 to 13 bits
4 mg/LSB scale factor in all g ranges
32-sample FIFO minimizes host processor load
Single tap, double tap, and free-fall detection
Activity/inactivity monitoring
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
10,000 g shock survival
Pb free/RoHS compliant
Small and thin: 3 mm × 5 mm × 1 mm LGA package The ADXL345-EP is an extended performance version of
the ADXL345, which is a small, thin, ultralow power, 3-axis
accelerometer 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 …