Combined Gyroscope and 3-Axis Accelerometer ADXC1501 Data Sheet FEATURES GENERAL DESCRIPTION Combined gyroscope and 3-axis, low g accelerometer Temperature compensated, high precision bias, and sensitivity performance 30 mg accelerometer bias stability over temperature 2/sec gyroscope null stability over temperature 2.5 mg rms typical accelerometer noise at 35.6 Hz 0.1/sec rms typical gyroscope noise at 35.6 Hz Gyroscope: linear acceleration rejection of 0.03/sec/g Acceleration: 32 g overload performance SPI digital output with a 16-bit data-word and a 4-bit CRC Comprehensive electromechanical fail-safe features 6 kHz data update rate Programmable filter response <16 mA quiescent current draw 3.3 V or 5 V operation -40C to +105C temperature range 16-lead SOIC package for robust EMI performance Qualified for automotive applications The ADXC1501 is a yaw rate gyroscope and 3-axis accelerometer combined in a single package. It is designed for electronic stability control and other high performance applications that require yaw rate and acceleration signals simultaneously. An internal temperature sensor compensates offset and sensitivity performance, providing excellent stability over the -40C to +105C temperature range. A digital serial port interface (SPI) transmits the yaw rate and acceleration data to a host microcontroller. A 4-bit cyclical redundancy check (CRC) provides fault coverage for the transmitted SPI data, and internal fault detection routines ensure the integrity of all reported yaw rates and acceleration data. A fully integrated electromechanical continuous self test (CST) routine provides run-time diagnostic capability for assessing the health of each MEMS element. An advanced gyroscope sensor design rejects the linear acceleration effects of shock and vibration, enabling the ADXC1501 to operate in harsh environments. The accelerometer signal chain is designed to prevent overload conditions from occurring in these same harsh environments. APPLICATIONS Electronic stability control Chassis control The ADXC1501 is designed to operate at either 3.3 V or 5 V. At less than 16 mA current consumption, the ADXC1501 can be used in energy sensitive applications. FUNCTIONAL BLOCK DIAGRAM GYROSCOPE SENSOR DIE MOSI SCLK CS SYNC SPI INTERFACE REGISTERS/MEMORY ADXC1501 Z-AXIS GYROSCOPE PHASELOCKED LOOP RESONATOR AFE TRIM AND SELF TEST - MOD XY AFE - MOD CLOCK GENERATION SYSTEM CONTROLLER XY SENSOR - MOD TEMP SENSOR - MOD Z AFE Z SENSOR VOLTAGE REGULATION VSA ACCELERATION SENSOR DIE ALU HIGH VOLTAGE GENERATION CP TPB TEST/DEBUG - MOD NVM BANDPASS FILTER CORIOLIS AFE TPA VSD AVDD DVDD AGND DGND VSIO VCM 13089-001 MISO Figure 1. For more information about the ADXC1501, contact the Analog Devices, Inc., Customer Interaction Center at http://www.analog.com/technical_support to connect with a technical support specialist. Rev. Sp0 Document Feedback 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 (c)2017 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADXC1501 Data Sheet NOTES (c)2017 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D13089F-0-8/17(Sp0) Rev. Sp0 | Page 2 of 2