ADXL202E

更新时间： 2024-11-10 22:05:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	153K
描述
Low-Cost +-2 g Dual-Axis Accelerometer with Duty Cycle Output

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ADXL202E 数据手册

Low-Cost ꢀ2 g Dual-Axis Accelerometer

with Duty Cycle Output

ADXL202E*

FEATURES

FUNCTIONAL BLOCK DIAGRAM

2-Axis Acceleration Sensor on a Single IC Chip

5 mm ꢃ 5 mm ꢃ 2 mm Ultrasmall Chip Scale Package

2 mg Resolution at 60 Hz

3V TO 5.25V

FILT

SELF-TEST

Low-Power < 0.6 mA

Direct Interface to Low-Cost Microcontrollers via

Duty Cycle Output

BW Adjustment with a Single Capacitor

3 V to 5.25 V Single Supply Operation

1000 g Shock Survival

32kꢂ

X SENSOR

FILT

OUT

DEMOD

ANALOG

DUTY

CYCLE

(ADC)

OSCILLATOR

ꢁP

ADXL202E

DEMOD

32kꢂ

FILT

OUT

APPLICATIONS

Y SENSOR

COM

FILT

2-Axis Tilt Sensing with Faster Response than

Electrolytic, Mercury, or Thermal Sensors

Computer Peripherals

SET

Information Appliances

Alarms and Motion Detectors

Disk Drives

A(g) = (T1/T2 – 0.5)/12.5%

0g = 50% DUTY CYCLE

Vehicle Security

T2 = R

/125Mꢂ

SET

GENERAL DESCRIPTION

The typical noise floor is 200 ␮g√Hz, allowing signals below

2 mg (at 60 Hz bandwidth) to be resolved.

The ADXL202E is a low-cost, low-power, complete 2-axis acceler-

ometer with a digital output, all on a single monolithic IC. It is an

improved version of the ADXL202AQC/JQC. The ADXL202E

will measure accelerations with a full-scale range of Ϯ2 g. The

ADXL202E can measure both dynamic acceleration (e.g., vibra-

tion) and static acceleration (e.g., gravity).

The bandwidth of the accelerometer is set with capacitors C_Xand

C_Yat the X_FILTand Y_FILTpins. An analog output can be recon-

structed by filtering the duty cycle output.

The ADXL202E is available in 5 mm ϫ 5 mm ϫ 2 mm 8-lead

hermetic LCC package.

The outputs are analog voltage or digital signals whose duty cycles

(ratio of pulsewidth to period) are proportional to acceleration.

The duty cycle outputs can be directly measured by a micro-

processor counter, without an A/D converter or glue logic. The

duty cycle period is adjustable from 0.5 ms to 10 ms via a single

resistor (R_SET).

*Patents Pending

REV. A

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

12 3 4 5 6 7...12

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与ADXL202E相关器件

型号	品牌	获取价格	描述	数据表
ADXL202EB	ADI	获取价格	Dual Axis Accelerometer Evaluation Board
ADXL202EB-232	ETC	获取价格	ADXL ACCEL EVAL BOARD
ADXL202JE	ADI	获取价格	Low-Cost +-2 g Dual-Axis Accelerometer with Duty Cycle Output
ADXL202JQC	ADI	获取价格	Low Cost +-2 g/+-10 g Dual Axis iMEMS Accelerometers with Digital Output
ADXL203	ADI	获取价格	Precision 【1.7 g Single/Dual Axis Acceleromet
ADXL203CE	ADI	获取价格	Precision 1.7g, -1.7g, 5g, -5g, 18g, -18g Single-/ Dual-Axis iMEMS Accelerometer
ADXL203CE1	ADI	获取价格	Precision 【1.7 g Single/Dual Axis Acceleromet
ADXL203CE-REEL	ADI	获取价格	Precision 1.7g, -1.7g, 5g, -5g, 18g, -18g Single-/ Dual-Axis iMEMS Accelerometer
ADXL203CE-REEL1	ADI	获取价格	Precision 【1.7 g Single/Dual Axis Acceleromet
ADXL203EB	ADI	获取价格	Precision 1.7g, -1.7g, 5g, -5g, 18g, -18g Single-/ Dual-Axis iMEMS Accelerometer

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