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ADXRS450BRGZ Datenblatt(PDF) 1 Page - Analog Devices |
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ADXRS450BRGZ Datenblatt(HTML) 1 Page - Analog Devices |
1 / 28 page 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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