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ADXRS645HDYZ Datasheet(Arkusz danych) 1 Page - Analog Devices

Numer części ADXRS645HDYZ
Szczegółowy opis  High Temperature, Vibration Rejecting plus,minus2000temperature/sec Gyroscope
Pobierz  10 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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High Temperature, Vibration Rejecting
±2000°/sec Gyroscope
Data Sheet
ADXRS645
FEATURES
Innovative ceramic vertical mount package can be oriented
for pitch or roll rate response
Wide temperature range: −40°C to +175°C
Long life: guaranteed 1000 hours at TA = 175°C
High vibration rejection over wide frequency
10,000 g powered shock survivability
Ratiometric to referenced supply
5 V single-supply operation
Self-test on digital command
Temperature sensor output
APPLICATIONS
Down hole measurements for geological exploration
Extreme high temperature industrial applications
Severe mechanical environments
GENERAL DESCRIPTION
The ADXRS645 is a high performance angular rate sensor
with excellent vibration immunity for use in high temperature
environments. The ADXRS645 is manufactured using the
Analog Devices, Inc., patented high volume BiMOS surface-
micromachining process with years of proven field reliability.
An advanced, differential, quad sensor design provides superior
acceleration and vibration rejection.
The output signal, RATEOUT, is a voltage proportional to the
angular rate about the axis normal to the package lid. The
measurement range is a minimum of ±2000°/sec, and may be
extended to ±5000°/sec with the addition of a single external
resistor. The output is ratiometric with respect to a provided
reference supply. Other external capacitors are required for
operation.
A temperature output is provided for compensation techniques.
Two digital self-test inputs electromechanically excite the sensor
to test proper operation of both the sensor and the signal
conditioning circuits. The ADXRS645 is available in a 8 mm ×
9 mm × 3 mm, 15-lead brazed lead tri in-line package.
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
VDD
AGND
PGND
AVCC
ST2
ST1
TEMP
VRATIO
CP1
CP2
CP3
CP4
CP5
SUMJ
RATEOUT
DEMOD
180kΩ ±1%
22nF
100nF
22nF
100nF
100nF
100nF
DRIVE
AMP
CHARGE PUMP
AND VOLTAGE
REGULATOR
COUT
5V
5V
5V
(ADC REF)
AC
AMP
VGA
25kΩ
@ 25°C
ADXRS645
25kΩ
SELF-TEST
MECHANICAL
SENSOR
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
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
©2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




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