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ADXRS645HDYZ Folha de dados(PDF) 1 Page - Analog Devices |
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ADXRS645HDYZ Folha de dados(HTML) 1 Page - Analog Devices |
1 / 10 page 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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