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PDF ADXRS800 Data sheet ( Hoja de datos )
| Número de pieza | ADXRS800 | |
| Descripción | Angular Rate Sensor | |
| Fabricantes | Analog Devices | |
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High Performance, SPI Digital Output,
Angular Rate Sensor
ADXRS800
FEATURES
Excellent null offset stability over temperature
High vibration rejection over a wide frequency range
2000 g powered shock survivability
SPI digital output with 16-bit data-word
Low noise
Continuous self-test
Fail-safe functions
Temperature sensor
3.3 V and 5 V operation
−40°C to +105°C operation
Small, low-profile industry standard SOIC package provides
yaw rate (Z-axis) response
Innovative ceramic vertical mount package (VMP) provides
pitch and roll rate response
Qualified for automotive applications
APPLICATIONS
Electronic stability control
High performance platform stabilization
GENERAL DESCRIPTION
The ADXRS800 is an angular rate sensor (gyroscope) intended
for automotive electronic stability control, vehicle rollover
detection, and other high performance applications. An advanced,
differential, quad-sensor design rejects the influence of linear
acceleration, enabling the ADXRS800 to operate in exceedingly
harsh environments where shock and vibration are present.
The ADXRS800 uses an internal, continuous self-test archi-
tecture. The integrity of the electromechanical system is checked
by applying a high frequency electrostatic force to the sense
structure to generate a rate signal that can be differentiated
from the baseband rate data and internally analyzed.
The ADXRS800 is capable of sensing an angular rate of up to
±300°/sec. Angular rate data is presented as a 16-bit word, as
part of a 32-bit SPI message.
The ADXRS800 is available in a cavity plastic SOIC-16 and
an SMT-compatible vertical mount package and is capable of
operating across both a wide voltage range (3.3 V to 5 V) and
temperature range (−40°C to 105°C).
CP5
VX
FUNCTIONAL BLOCK DIAGRAM
HIGH VOLTAGE
GENERATION
ADXRS800
Z-AXIS ANGULAR
RATE SENSOR
HV DRIVE
CLOCK
PHASE DIVIDER
LOCKED
LOOP AMPLITUDE
DETECT
BAND-PASS
FILTER
ADC 12
DEMOD
Q DAQ
P DAQ
Q FILTER
ST
CONTROL
ALU
DECIMATION
FILTER
TEMPERATURE
CALIBRATION
FAULT
DETECTION
EEPROM
LDO
REGULATOR
PDD
DVDD
AVDD
SPI
INTERFACE
MOSI
MISO
SCLK
CS
DVSS
PSS
AVSS
Figure 1.
For more information about the ADXRS800, 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
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011 Analog Devices, Inc. All rights reserved.
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