KXTJ2 Accelerometer 2x2x0.9mm Low-Power Accelerometer FEATURES APPLICATIONS Ultra-small Package - 2x2x0.9mm LGA User Interface User-selectable g Range and Output Data Rate Power Management 8-bit, 12-bit, and 14-bit Resolution Active/Inactive Monitoring Low Power Consumption Device Orientation Internal voltage regulator Inclination and Tilt Sensing User-configurable wake-up function Gesture Recognition 2 Digital I C Pedometer/Activity Monitoring Lead-free Solderability Excellent Temperature Performance FOR High Shock Survivability Smartphones and Mobile Devices Factory Programmable Offset and Sensitivity Laptops Self-test Function Gaming and Virtual Reality Health and Fitness PRODUCT OVERVIEW The KXTJ2 is one of our smallest tri-axis accelerometers, designed for mobile applications. It offers excellent power performance along with an embedded motion wake-up feature, Fast-mode I2C and up to 14-bit resolution. The KXTJ2 is delivered in a 2 x 2 x 0.9 mm, 12-pin, LGA package with an operating temperature range of -40C to +85C. The KXTJ2 sensor offers improved shock, reflow, and temperature performance, and the ASIC has internal voltage regulators that allow operation from 1.8 V to 3.6 V within the specified product performance. KXTJ2 Accelerometer 2x2x0.9mm Low-Power Accelerometer 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 KXTJ2-1009 CONDITION Range g 2.0, 4.0, 8.0 User-selectable full-scale output range 64, 32, 16 8-bit 1 Sensitivity counts/g 1024, 512, 256 12-bit 2 1024 typical 14-bit 0g Offset vs. Temp mg/C 0.2 -40C to +85C Sensitivity vs. Temp %/C 0.01 (xy) 0.03 (z) typical -40C to +85C 3 Mechanical Resonance Hz 3500 (xy) 1800 (z) typical -3dB 4 Output Data Rate (ODR) Hz 0.781 min 50 typical 1600 max 800 RES = 0 5 Bandwidth (-3dB) Hz ODR/2 RES = 1 Non-Linearity % of FS 1.0 typical % of full scale output Cross-axis Sensitivity % 2.0 typical 2 I C Communication Rate MHz 3.4 max Power Supply V 2.6 typical 1.8V 3.6V 135 typical High resolution (RES = 1) 6 Current Consumption A 10 typical Low resolution (RES = 0) 2 typical Standby ENVIRONMENTAL SPECIFICATIONS PARAMETERS UNITS KXTJ2-1009 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 Resolution and acceleration ranges are user selectable via I2C. 2 14-bit Resolution is only available for registers 0x06h 0x0Bh in the 8g Full Power mode. 3 Resonance as defined by the dampened mechanical sensor. 4 User selectable through I2C. 5 User selectable dependent on ODR and RES. 6 Current varies with Output Data Rate (ODR).