Datasheet > ADXL185B

ADXL185B

更新时间： 2023-12-20 18:46:28

品牌	Logo	应用领域
亚德诺 - ADI		传感器
页数	文件大小	规格书
2页	86K
描述
低成本、单Z轴PSI5-兼容型卫星传感器

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中文翻译

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数据手册

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ADXL185B 数据手册

Low Cost, Single-Axis

PSI5-Compatible Satellite Sensor

Data Sheet

ADXL185B/ADXL189B

FEATURES

GENERAL DESCRIPTION

User configurable sensor range: 30 g, 60 g, 120 g,

240 g, 480 g

The ADXL185B z-axis sensor and the ADXL189B x-axis sensor

are g range configurable, integrated single-axis satellite sensors,

compliant with the PSI5 Version 1.3 specification. The ADXL185B/

ADXL189B enable low cost solutions for front and side impact

airbag satellite sensor applications. Acceleration data is sent to

the control module via a digital 2-wire current loop interface bus.

Compliant with PSI5 Communication Protocol Version 1.3

Asynchronous operation: PSI5-A10P-250[228]/1L

Synchronous operation: PSI5-P10P-500/3L and others

Daisy-chain operation with bidirectional communication

10-bit sensor data

0.25 µs data interpolation routine

User-selectable, continuous auto-zero operation

Electromechanical sensor self-test

High resistance to EMI/RFI/BCI

4.5 V to 16.5 V operation

Electronic serial number

Qualified for automotive applications

The sensor g range is configurable to provide full-scale ranges

from 30 g to 480 g. The devices can also be configured to

transmit data from multiple g ranges during predefined time slots,

in accordance with the PSI5 specification. The devices transmit

10-bit acceleration data to the control module and can be configured

to include either a 1-bit parity check or a 3-bit cyclic redundancy

check (CRC). Each device has a unique electronic serial number.

The ADXL185B/ADXL189B are available in a 16-lead, narrow-body

SOIC package with an exposed pad. The ADXL185B/ADXL189B

are specified to operate over the full automotive temperature range

of −40°C to +125°C.

APPLICATIONS

Front impact crash sensing

Side impact crash sensing

Shock and vibration detection

Pedestrian collision sensing

FUNCTIONAL BLOCK DIAGRAM

SENSOR ANALOG

FRONT END (SAFE)

DIGITAL SIGNAL PROCESSING

COMMUNICATIONS INTERFACE

MOSI

MISO

SPI

PHY

SCLK

SPI

DLL

g RANGE

SERIAL

PORT

PSI5

DLL

DATA

PSI5

PHY

OUTPUT

DATA

DIGITAL

FILTER

–3dB AT

~400Hz

OFFSET/

SENSITIVITY

CALIBRATION

AUTO-

ZERO

Σ-Δ MOD

DEMOD

AMP

REG

OFFSET

OVER-

RANGE

OFFSET OVR

ERROR FLAG

X/Z SINGLE-

AXIS ACCEL

SENSOR DIE

OTP NVM

SENSOR

DRIVERS

(SN, CAL, CONFIG)

DCC

SELF-

TEST

SELF-

TEST

CHECK

POR

SELF-TEST

ERROR FLAG

MASTER

SHADOW RAM

STATE

MONITOR

MACHINE

TEST REGISTERS

ERROR HANDLER

REF

TIMING

GENERATOR

TPA

TPB

STATE MACHINE

TEST MUX

CLOCK

Figure 1.

For more information about the ADXL185B/ADXL189B, please contact the Analog Devices, Inc., Customer Interaction Center at

http://www.analog.com/en/content/technical_support_page/fca.html to connect with a technical support specialist.

Rev. Sp0

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.

Tel: 781.329.4700

Technical Support

www.analog.com

中文翻译

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与ADXL185B相关器件

型号	品牌	获取价格	描述	数据表
ADXL189B	ADI	获取价格	低成本、单X轴PSI5-兼容型卫星传感器
ADXL190	ADI	获取价格	Low Cost +-100 gSingle Axis Accelerometer with Analog Output
ADXL190*	ADI	获取价格	Low Cost 6100 gSingle Axis Accelerometer with Analog Output
ADXL190EM-1	ADI	获取价格	ADXL105/ADXL150/ADXL250/ADXL190 Evaluation Modules
ADXL190WQC	ADI	获取价格	Low Cost +-100 gSingle Axis Accelerometer with Analog Output
ADXL193	ADI	获取价格	Single-Axis, High-g, iMEMS Accelerometers
ADXL195	ADI	获取价格	High Performance Accelerometer with Dual Spectrum Signal Processing
ADXL195WBRDZA-RL	ADI	获取价格	Single-axis, High Performance Accelerometer with Dual Spectrum Signal Processing
ADXL202	ADI	获取价格	Low Cost +-2 g/+-10 g Dual Axis iMEMS Accelerometers with Digital Output
ADXL202_15	ADI	获取价格	Accelerometers with Digital Output

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