ADXL312WACPZ-RL

更新时间： 2024-02-26 08:48:15

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数据手册

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ADXL312WACPZ-RL 数据手册

3-Axis, ± ±1. g/± 3 g/± ꢀ g/± ±ꢁ g

Digital Accelerometer

ADXL3±ꢁ

FEATURES

GENERAL DESCRIPTION

Ultralow power: as low as 57 μA in measurement mode and

0.1 μA in standby mode at V_S= 3.3 V (typical)

Power consumption scales automatically with bandwidth

User-selectable resolution

The ADXL312 is a small, thin, low power, 3-axis accelerometer

with high resolution (13-bit) measurement up to 12 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

interface.

Fixed 10-bit resolution

Full resolution, where resolution increases with g range,

up to 13-bit resolution at 12 g (maintaining 2.9 mg/LSB

scale factor in all g ranges)

Embedded, patent pending FIFO technology minimizes host

processor load

The ADXL312 is well suited for car alarm or black box applica-

tions. It measures the static acceleration of gravity in tilt-sensing

applications, as well as dynamic acceleration resulting from

motion or shock. Its high resolution (2.9 mg/LSB) enables

resolution of inclination changes of as little as 0.25°. A built-in

FIFO facilitates using oversampling techniques to improve

resolution to as little as 0.05° of inclination.

Built-in motion detection functions for activity/inactivity

monitoring

Supply and I/O voltage range: 2.0 V to 3.6 V

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 to +105°C)

10,000 g shock survival

Several special sensing functions are provided. Activity and

inactivity sensing detects the presence or absence of motion and

whether the acceleration on any axis exceeds a user-set level.

These functions can be mapped to interrupt output pins. An

integrated 32 level FIFO can be used to store data to minimize

host processor intervention.

Pb free/RoHS compliant

Small and thin: 5 mm × 5 mm × 1.45 mm LFCSP package

Qualified for automotive applications

Low power modes enable intelligent motion-based power

management with threshold sensing and active acceleration

measurement at extremely low power dissipation.

The ADXL312 is supplied in a small, thin 5 mm × 5 mm ×

1.45 mm, 32-lead, LFCSP package.

APPLICATIONS

Car alarm

Hill start aid (HSA)

Electronic parking brake

Data recorder (black box)

FUNCTIONAL BLOCK DIAGRAM

DD I/O

ADXL312

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. ADXL312 Simplified Block Diagram

Rev. 0

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

rights of third parties that may result from its 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 and registeredtrademarks arethe property of their respective owners.

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

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...32

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与ADXL312WACPZ-RL相关器件

型号	品牌	获取价格	描述	数据表
ADXL313	ADI	获取价格	3-Axis, Â±0.5 g/Â±1 g/Â±2 g/Â±4 g Digital Acc
ADXL313WACPZ-RL	ADI	获取价格	3-Axis, Â±0.5 g/Â±1 g/Â±2 g/Â±4 g Digital Acc
ADXL313WACPZ-RL7	ADI	获取价格	3-Axis, Â±0.5 g/Â±1 g/Â±2 g/Â±4 g Digital Acc
ADXL314	ADI	获取价格	±200 g 范围、3轴数字加速度计
ADXL316	ADI	获取价格	Small, Low Power, 3-Axis plus minus16 g Accelerometer
ADXL316WBCSZ	ADI	获取价格	Small, Low Power, 3-Axis, ±16 g Accelerometer
ADXL316WBCSZ-RL	ADI	获取价格	Small, Low Power, 3-Axis plus minus16 g Accelerometer
ADXL316WBCSZ-RL7	ADI	获取价格	Small, Low Power, 3-Axis plus minus16 g Accelerometer
ADXL317	ADI	获取价格	3 轴 ±16 g I2S 数字加速度计
ADXL320	ADI	获取价格	Small and Thin 5 g Accelerometer

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