High Performance, SPI Digital Output, Angular Rate Sensor ADXRS800 FEATURES GENERAL DESCRIPTION Excellent null offset stability over temperature High vibration rejection over a wide frequency range 2000 g powered shock survivability SPI digital output with 16-bit data-word Low noise Continuous self-test Fail-safe functions Temperature sensor 3.3 V and 5 V operation −40°C to +105°C operation Small, low-profile industry standard SOIC package provides yaw rate (Z-axis) response Innovative ceramic vertical mount package (VMP) provides pitch and roll rate response Qualified for automotive applications The ADXRS800 is an angular rate sensor (gyroscope) intended for automotive electronic stability control, vehicle rollover detection, and other high performance applications. An advanced, differential, quad-sensor design rejects the influence of linear acceleration, enabling the ADXRS800 to operate in exceedingly harsh environments where shock and vibration are present. APPLICATIONS The ADXRS800 is available in a cavity plastic SOIC-16 and an SMT-compatible vertical mount package 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). The ADXRS800 uses an internal, continuous self-test architecture. 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 ADXRS800 is capable of sensing an 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. Electronic stability control High performance platform stabilization FUNCTIONAL BLOCK DIAGRAM VX HIGH VOLTAGE GENERATION PDD ADXRS800 LDO REGULATOR HV DRIVE Z-AXIS ANGULAR RATE SENSOR Q DAQ P DAQ ADC 12 DECIMATION FILTER DEMOD TEMPERATURE CALIBRATION FAULT DETECTION Q FILTER REGISTERS/MEMORY ALU CLOCK PHASE DIVIDER LOCKED LOOP AMPLITUDE DETECT BAND-PASS FILTER DVDD AVDD SPI INTERFACE MOSI MISO SCLK CS DVSS ST CONTROL PSS EEPROM AVSS 09106-001 CP5 Figure 1. For more information about the ADXRS800, please contact the Analog Devices, Inc., Customer Interaction Center at http://www.analog.com/en/content/technical_support_page/fca.html to connect with a technical support specialist. Rev. Sp0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. 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 ©2011 Analog Devices, Inc. All rights reserved. ADXRS800 NOTES ©2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D09106F-0-3/11(Sp0) Rev. Sp0 | Page 2 of 2