KX022 Accelerometer 2x2x0.9mm Accelerometer with FIFO/FILO Buffer FEATURES APPLICATIONS User Interface 2x2x0.9mm LGA package Power Management Full-featured algorithm engine including: Active/Inactive Monitoring o Tap detection, orientation detection, activity Device Orientation monitoring, and embedded motion wake-up Inclination and Tilt Sensing algorithms Gesture Recognition Low current consumption in all modes: Pedometer/Activity Monitoring Motion-controlled user interface o 0.9 A in standby, o 10 A at normal resolution, and FOR o 145 A at high resolution Smartphones and Mobile Devices Two interrupt registers Laptops User-configurable, embedded wake-up Gaming and Virtual Reality function to conserve battery power Health and Fitness Internal voltage regulator to maintain constant internal operating voltages throughout the 1.8 - 3.6V input supply range PRODUCT OVERVIEW The KX022 is a robust, low-power, I2C/SPI, 3-axis accelerometer with integrated FIFO/FILO buffer that features a wide range of embedded functionality, including tap detection, orientation, activity, and wake-up algorithms. Kionixs XAC sensor provides outstanding stability with a market-leading combination of improved shock, reflow, and thermal performance. The KX022 also offers accelerometer outputs with 16-bit resolution for greater precision. User- selectable parameters include 2g, 4g or 8g ranges and Output Data Rates (ODR) with programmable high-pass and low-pass filters. It is packaged in an ultra-small, 12-pin, 2x2x0.9mm LGA plastic package. KX022 Accelerometer 2x2x0.9mm Accelerometer with FIFO/FILO Buffer The performance parameters below are programmed and tested at 2.6 volts and T = 25C. The device can accept supply voltages from 1.8V to 3.6V. Due to internal voltage regulators, there should be minimal change with supply voltage variations. PERFORMANCE SPECIFICATIONS PARAMETERS UNITS KX022-1020 CONDITION Range g 2.0, 4.0, 8.0 User-selectable full-scale output range 16384, 8192, 4096 16-bit 1 Sensitivity counts/g 64, 32, 16 8-bit 0g Offset vs. Temp mg/C 0.2 -40C to +85C Sensitivity vs. Temp %/C 0.01 -40C to +85C 2 Mechanical Resonance Hz 3500 (xy) 1800 (z) typical -3dB 3 Output Data Rate (ODR) Hz 0.781 min 50 typical 1600 max Non-Linearity % of FS 0.6 typical % of full scale output Cross-axis Sensitivity % 2.0 typical 4 Noise mg 0.75 typical 2 I C Communication Rate MHz 3.4 max SPI Communication Rate MHz 10 max Power Supply V 1.8V 3.6V typical 145 typical High resolution (RES = 1) 5 10 typical Low resolution (RES = 0) Current Consumption A 0.9 typical Standby ENVIRONMENTAL SPECIFICATIONS PARAMETERS UNITS KX022-1020 CONDITION Operating Temperature C -40 to 85 Powered Storage Temperature C -55 to 150 Un-powered 5,000, 0.5 ms Powered or un-powered, Mechanical Shock g 10,000, 0.2 ms halversine ESD V 2,000 Human body model NOTES 1 2 Resolution and acceleration ranges are user selectable via I C or SPI. 2 Resonance as defined by the dampened mechanical sensor. 3 2 User selectable through I C or SPI. 4 RMS at 50Hz with low-pass filter = ODR/9. 5 Current varies with Output Data Rate (ODR).