GlobalMEMS
GMA302F
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GMA302F ±16g Tri-Axial Digital Accelerometer General Introduction GMA302F is a tri-axial digital accelerometer with ±16g dynamIC range and 13-bit ADC resolution. It integrates a MEMS sensing element and a CMOS conditioning IC in a compact 3×3×1 mm 3 package. The high resolution makes feasible preciseapplications like e-Compass tilt compensation. The wide sensing range further opens enough windows for motion detection. Finally the small form factor makes it an easy fit-in for compact applications like wearables. Features Tri-axial digital accelerometer with ±16g dynamic range 13 bit ADC resolution with sensitivity 256 LSB/g Digital I2C interface supporting both fast mode (400kHz) and normal mode (100kHz) Temperature sensor for internal compensation and capable of digital output Operation voltage: +2.5V ~ +3.6V; IO interface voltage: +1.8V ~ +3.6V Power consumption: Continuous mode (CM): typical 250uA for 128Hz ODR Non-Continuous mode (NCM): typical 90uA to 100uA for 1~8Hz ODR Suspend current < 1uA One interrupt pin with selectable polarity and push-pull/open-drain option Built-in functions: Data-ready interrupt 4-tap moving average filter with high-/low-pass option 5000g shock tolerance 10-pin QFN lead-free package. Footprint: 3mm × 3mm, height: 1mm. RoHS compliance Applications Smart user interface, e-compass tilt-compensation, motion detection and analysis 1 2 3 4 5 10 9 8 7 6 5 1 2 3 4 DVSS DVDD NC SCL SDA INT Reserved NC 6 10 9 8 7 AVSS AVDD NC NC A2A XXX Bottom View Top View
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