High Performance, Dual-Axis Digital Output Accelerometer Data Sheet ADXL288 FEATURES GENERAL DESCRIPTION 120 g full-scale range The ADXL288 is a dual-axis accelerometer with signal- 12-bit resolution at 62.5 mg/LSB conditioned outputs available via a 16-bit SPI interface. Identical, 512 kHz data interpolation rate independent X and Y sense structures are implemented to create Sensor frequency response down to dc a high performance, high integrity acceleration sensing system. On-demand electromechanical self-test The X and Y acceleration channels have a nominal full-scale Fully differential circuitry for high resistance to EMI/RFI range of 120 g and a bandwidth of 408 Hz. The acceleration Independent x- and y-axis sense structures for robust data is provided as a 12-bit, twos complement word with a FMEA performance resolution of 62.5 mg/LSB. Independent x- and y-axis arming thresholds The ADXL288 is available in a 16-lead, narrow-body SOIC Low noise: 1 LSB rms typical package with an exposed pad. The ADXL288 can operate Qualified for automotive applications at 3.3 V and 5 V and is specified for operation from 40C Temperature range: 40C to +105C to +105C. 3.3 V and 5 V operation APPLICATIONS Impact sensing Shock detection FUNCTIONAL BLOCK DIAGRAM ARM X SELF- STATE MACHINE TEST ARM Y INTERPOLATION AT 512kHz OFFSET/ - 3 SINC + FIR FILTER OFFSET AC SENSITIVITY DEMOD MOD 3dB AT 408Hz CANCELLATION AMP CALIBRATION MISO MOSI X-AXIS SENSOR SENSOR DRIVERS SCLK CS INTERPOLATION AT 512kHz 3 OFFSET/ - SINC + FIR FILTER OFFSET AC SENSITIVITY DEMOD MOD 3dB AT 408Hz CANCELLATION AMP CALIBRATION DEVICE ID VDD OTP TRIM Y-AXIS SENSOR VREG MEMORY DRIVERS SENSOR CONFIGURATION TIMING GND GENERATOR EPAD Figure 1. For more information about the ADXL288, please contact the Analog Devices, Inc., Customer Interaction Center at ADXL288 Data Sheet NOTES 2013 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D11204F-0-1/13(Sp0) Rev. Sp0 Page 2 of 2