Datasheet > EVAL-ADXL345Z-S

EVAL-ADXL345Z-S

更新时间： 2024-11-05 12:53:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
40页	656K
描述
Digital Accelerometer

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数据手册

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EVAL-ADXL345Z-S 数据手册

3-Axis, 2 g/ 4 g/ 8 g/ 16 g

Digital Accelerometer

Data Sheet

ADXL345

FEATURES

GENERAL DESCRIPTION

Ultralow power: as low as 23 µA in measurement mode and

0.1 µA in standby mode at V_S= 2.5 V (typical)

Power consumption scales automatically with bandwidth

User-selectable resolution

The ADXL345 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 acces-

sible through either a SPI (3- or 4-wire) or I²C digital interface.

Fixed 10-bit resolution

The ADXL345 is well suited for mobile device applications. It

measures the static acceleration of gravity in tilt-sensing appli-

cations, 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°.

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)

Patent pending, 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 V_S

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

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, patent pending 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.

Pb free/RoHS compliant

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

APPLICATIONS

The ADXL345 is supplied in a small, thin, 3 mm × 5 mm × 1 mm,

14-lead, plastic package.

Handsets

Medical instrumentation

Gaming and pointing devices

Industrial instrumentation

Personal navigation devices

Hard disk drive (HDD) protection

FUNCTIONAL BLOCK DIAGRAM

DD I/O

ADXL345

POWER

MANAGEMENT

INT1

INT2

CONTROL

AND

INTERRUPT

LOGIC

SENSE

ELECTRONICS

ADC

DIGITAL

FILTER

3-AXIS

SENSOR

SDA/SDI/SDIO

32 LEVEL

FIFO

SERIAL I/O

SDO/ALT

ADDRESS

SCL/SCLK

GND

Figure 1.

Rev. D

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Technical Support

www.analog.com

12 3 4 5 6 7...40

中文翻译

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与EVAL-ADXL345Z-S相关器件

型号	品牌	获取价格	描述	数据表
EVAL-ADXL346Z	ADI	获取价格	3-Axis, ±2 g/±4 g/±8 g/±16 g Ultralow Power D
EVAL-ADXL346Z-M	ADI	获取价格	3-Axis, ±2 g/±4 g/±8 g/±16 g Ultralow Power D
EVAL-ADXL346Z-S	ADI	获取价格	3-Axis, ±2 g/±4 g/±8 g/±16 g Ultralow Power D
EVAL-ADXL350Z	ADI	获取价格	Digital Accelerometer
EVAL-ADXL350Z-M	ADI	获取价格	Digital Accelerometer
EVAL-ADXL350Z-S	ADI	获取价格	Digital Accelerometer
EVAL-ADXL354BZ	ADI	获取价格	Hermetic package offers excellent long-term stability
EVAL-ADXL354CZ	ADI	获取价格	Hermetic package offers excellent long-term stability
EVAL-ADXL355Z	ADI	获取价格	Hermetic package offers excellent long-term stability
EVAL-ADXL356BZ	ADI	获取价格	Low Noise, Low Drift, Low Power, 3-Axis MEMS Accelerometers

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