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Datasheet ADXL151 (Analog Devices)

ПроизводительAnalog Devices
ОписаниеLow Cost, Single Axis, PSI5-Compatible Satellite Sensor
Страниц / Страница3 / 1 — Low Cost, Single Axis,. PSI5-Compatible Satel ite Sensor. Data Sheet. …
ВерсияSpA
Формат / Размер файлаPDF / 110 Кб
Язык документаанглийский

Low Cost, Single Axis,. PSI5-Compatible Satel ite Sensor. Data Sheet. ADXL151. FEATURES. GENERAL DESCRIPTION

Datasheet ADXL151 Analog Devices, Версия: SpA

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Low Cost, Single Axis, PSI5-Compatible Satel ite Sensor Data Sheet ADXL151 FEATURES GENERAL DESCRIPTION User configurable sensor range
The ADXL151 is a g range configurable single axis integrated
±120 g , ±240 g , and ±480 g
satellite sensor, compliant to the PSI5 V2.1 specification. The
PSI5 communication protocol, V2.1 compliant
ADXL151 enables low cost solutions for front and side impact
Asynchronous operation—PSI5-A10P-250[228]/1L
airbag satellite sensor applications. Acceleration data is sent to
Synchronous operation—PSI5-P10P-500/3L and others
the control module via a digital 2-wire current loop interface bus.
Daisy-chain operation with bidirectional communication
The g range of the sensor is configurable to provide full-scale
Backwards compliant with PSI5 V1.3
acceleration measurements of ±120 g, ±240 g, or ±480 g.
Selectable 10- or 16-bit sensor data
Additionally, the device can be configured to transmit data
High accuracy interpolation routine
from multiple g ranges during predefined time slots, in
User-selectable, continuous auto-zero operation
accordance with the PSI5 specification. The device transmits
Electromechanical sensor self-test
10- or 16-bit acceleration data to the control module, and can
High resistance to electromagnetic interference (EMI)/
be configured to include either a 1-bit parity check, or a 3-bit
radio frequency interference (RFI)
cyclic redundancy check (CRC). The ADXL151 has a unique
4.5 V to 16.5 V operation
electronic serial number.
Electronic serial number Qualified for automotive applications
The ADXL151 is available in a 12-lead, 4 mm × 4 mm LFCSP package. The device is specified to operate over the ful
APPLICATIONS
automotive temperature range, from −40°C to +125°C.
Front impact crash sensing Side impact crash sensing FUNCTIONAL BLOCK DIAGRAM SENSOR ANALOG FRONT END (SAFE) DIGITAL SIGNAL PROCESSING COMMUNICATIONS INTERFACE MOSI g RANGE SPI MISO SPI PHY SCLK DLL CS BEAM 1 BEAM 2 OFFSET/ SERIAL OUTPUT AC DIGITAL AUTO- PORT DEMOD SENSITIVITY DATA Σ-Δ MOD AMP FILTER ZERO PSI5 I CALIBRATION REGISTER DLL PSI5 DATA PHY VBP OFFSET OFFSET VDD V OVER- OVR REG V REG DD X-AXIS, RANGE ERROR SINGLE AXIS OTP NVM SENSOR FLAG DIFFERENTIAL SELF- (SN, CAL, CONFIG) DRIVERS VBN XL TEST SENSOR DIE SELF- SELF- TEST TEST SHADOW RAM CHECK ERROR POR MASTER FLAG STATE MACHINE V TEST REGISTERS DD MONITOR TP1 TEST MUX DCC/TP2 TIMING STATE ERROR HANDLER GENERATOR MACHINE CLOCK
001 12859- Figure 1. For more information about the ADXL151, contact the Analog Devices, Inc., Customer Interaction Center at http://www.analog.com/technical_support to connect with a technical support specialist.
Rev. SpA 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 rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM NOTES
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