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ADXRS450BRGZ Datasheet(Arkusz danych) 1 Page - Analog Devices

Numer części ADXRS450BRGZ
Szczegółowy opis  HIgh Performance, Digital Output Gyroscope
Pobierz  28 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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High Performance,
Digital Output Gyroscope
Preliminary Technical Data
ADXRS450
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalog Devices foritsuse,nor for anyinfringements ofpatents orother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2010 Analog Devices, Inc. All rights reserved.
FEATURES
Complete rate gyroscope on a single chip
±300°/sec angular rate sensing
High vibration rejection over a wide frequency range
Excellent 25°/hr null offset stability
Internally temperature compensated
2000 g powered shock survivability
SPI digital output with 16-bit data-word
Low noise and low power
3.3 V and 5V operation
−40°C to +105°C operation
Ultra small, light, and RoHS compliant
Two package options
Low cost SOIC_CAV package for yaw rate (Z-axis) response
Innovative ceramic vertical mount package, which can be
oriented for pitch, roll, or yaw response
APPLICATIONS
Rotation sensing medical applications
Rotation sensing industrial and instrumentation
High performance platform stabilization
GENERAL DESCRIPTION
The ADXRS450 is an angular rate sensor (gyroscope) intended
for industrial, medical, instrumentation, stabilization, and other
high performance applications. An advanced, differential, quad
sensor design rejects the influence of linear acceleration, enabling
the ADXRS450 to operate in exceedingly harsh environments
where shock and vibration are present.
The ADXRS450 utilizes 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 ADXRS450 is capable of sensing 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 ADXRS450 is available in a cavity plastic 16-lead SOIC
(SOIC_CAV) and an SMT-compatible vertical mount package
(LCC_V), 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).
FUNCTIONAL BLOCK DIAGRAM
SPI
INTERFACE
MISO
MOSI
SCLK
CS
HIGH VOLTAGE
GENERATION
EEPROM
PSS
CP5
AVSS
VX
LDO
REGULATOR
PDD
DVSS
DVDD
AVDD
BAND-PASS
FILTER
FAULT
DETECTION
TEMPERATURE
CALIBRATION
DECIMATION
FILTER
ALU
PHASE
LOCKED
LOOP
CLOCK
DIVIDER
DEMOD
Q FILTER
Q DAQ
P DAQ
HV DRIVE
ST
CONTROL
ADC 12
AMPLITUDE
DETECT
Z-AXIS ANGULAR
RATE SENSOR
ADXRS450
Figure 1.




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