High Precision, Low-g, Digital Triaxial Accelerometer Data Sheet ADXL700 FEATURES GENERAL DESCRIPTION High performance, triaxial digital output accelerometer The ADXL700 device is a high precision, triaxial accelerometer 14.2 g full-scale range at 16-bit resolution (0.434 mg/LSB) designed for electronic stability control and other high perfor- 2 kHz output sample rate with optional data FIFOs mance applications. A built in temperature compensation routine Programmable filter response ensures sensitivity stability to better than 3% across the entire 20 Hz, 46 Hz, 92 Hz, 184 Hz temperature range. The ADXL700 is designed with selectable Continuous electromechanical self-test 3 dB filter corner frequencies to satisfy a range of applications, Additional key-on and on demand self-test routines and the 2 kHz output data rate allows sufficient oversampling of Temperature compensated, high precision zero-g bias and the acceleration information. sensitivity performance The acceleration data output from the device is a true 16-bit X-/Y-/Z-axis offset adjust word and is contained in a 32-bit SPI transaction. The SPI Low quiescent current draw interface contains additional fault detection bits and data High linearity performance formatting bits designed to assist high reliability applications. 40C to +105C temperature range SPI communications are compatible up to 8 MHz. The 16-bit Qualified for automotive applications acceleration data-word offers a resolution of 0.434 mg/LSB for the 14.2 g full-scale range of the device. APPLICATIONS Vehicle dynamic control (VDC) The ADXL700 is available in an SOIC package with an inverted Electronic stability program (ESP) paddle for improved EMI/RFI robustness. The ADXL700 operates Electronic chassis control at both 3.3 V and 5 V, and is specified to operate across the full Platform stabilization/leveling automotive temperature range of 40C to +105C. FUNCTIONAL BLOCK DIAGRAM IIR FILTER - THIRD-ORDER CALIBRATION FORMAT MOD SINC FILTER BYPASS X/Y AFE IIR FILTER - THIRD-ORDER CALIBRATION FORMAT MOD SINC FILTER BYPASS SCLK IIR FILTER CS Z - THIRD-ORDER CALIBRATION FORMAT AFE MOD SINC FILTER BYPASS MOSI MISO TEMP - THIRD-ORDER CAL COEFFICIENT IIR FILTER CALIBRATION FORMAT SENSOR MOD SINC FILTER GENERATION SENSOR SELF DRIVERS TEST IOVDD DSP MASTER DSP CONTROL DVDD TIMING GEN STATE MACHINE REGISTER REGVDD VDD OTP MONITOR AVDD SERIAL VDD CLOCK ERROR NUMBER REG REGGND ERROR FLAGS CONFIG HANDLER IOGND TRIM POR ADXL700 COEFFICIENT REFERENCE VCM Figure 1. For more information about the ADXL700, please contact the Analog Devices, Inc., Customer Interaction Center at ADXL700 Data Sheet NOTES 2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. www.analog.com/ADXL700 D13199F-0-5/15(Sp0) Rev. Sp0 Page 2 of 2