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ADXRS623 Datasheet(PDF) 1 Page - Analog Devices |
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ADXRS623 Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page ±150°/Sec Yaw Rate Gyroscope ADXRS623 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother 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 Z-axis (yaw rate) response High vibration rejection over wide frequency 2000 g powered shock survivability Ratiometric to referenced supply 5 V single-supply operation –40°C to +105°C operation Self-test on digital command Ultrasmall and light (<0.15 cc, <0.5 gram) Temperature sensor output RoHS compliant APPLICATIONS Inertial measurement units Platform stabilization Robotics GENERAL DESCRIPTION The ADXRS623 is a complete angular rate sensor (gyroscope) that uses the Analog Devices, Inc., surface-micromachining process to create a functionally complete and low cost angular rate sensor integrated with all required electronics on one chip. The manufacturing technique for this device is the same high volume BiMOS process used for high reliability automotive airbag accelerometers. The output signal, RATEOUT (1B, 2A), is a voltage proportional to the angular rate about the axis that is normal to the top surface of the package. The output is ratiometric with respect to a pro- vided reference supply. An external capacitor sets the bandwidth. 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 con- ditioning circuits. The ADXRS623 is available in a 7 mm × 7 mm × 3 mm ceramic ball grid array (CBGA) package. FUNCTIONAL BLOCK DIAGRAM VDD AGND PGND AVCC ST2 ST1 TEMP VRATIO CP1 CP2 CP3 CP4 CP5 SUMJ RATEOUT DEMOD 180k Ω ± 1% 22nF 100nF 22nF 100nF 100nF 100nF DRIVE AMP MECHANICAL SENSOR CHARGE PUMP AND VOLTAGE REGULATOR COUT +5V +5V +5V (ADC REF) AC AMP VGA 25k Ω @ 25°C ADXRS623 25k Ω SELF-TEST Figure 1. |
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