The MPU-9250 is InvenSense's second-generation 9-axis MotionTracking device for smartphones, tablets, wearable sensors, and other consumer markets. The MPU-9250, delivered in a 3 x 3 x 1 mm QFN package, is the world's smallest 9-axis MotionTracking device and incorporates the latest InvenSense design innovations, enabling dramatically-reduced chip size and power consumption, while at the same time improving performance and cost.
The MPU-9250 is a system in package (SiP) that combines two chips: the MPU-6500, which contains a three-axis gyroscope, a three-axis accelerometer, and an onboard Digital Motion Processor™ (DMP™) capable of processing complex MotionFusion algorithms; and the AK8963, the market-leading three-axis digital compass. The MPU-9250 supports InvenSense's market-proven MotionFusion. A single design can support the MPU-9250 or MPU-6500, providing customers the flexibility to support either device in different product SKUs.
Improvements include supporting the accelerometer low-power-mode with as little as 6.4 µA and it provides improved compass data resolution of 16-bits (0.15 µT per LSB). The full-scale measurement range of ±4800 µT helps alleviate compass placement challenges on complex PCBs.
The MPU-9250 software drivers are fully compliant with Google's Android 4.1 Jelly Bean release, and support new low-power DMP capabilities that offload the host processor to reduce power consumption and simplify application development. The MPU-9250 includes MotionFusion and run-time calibration firmware that enables consumer electronics manufacturers to commercialize cost-effective motion-based functionality.
| Features |
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- Digital-output 6-axis MotionFusion data from DMP; 9-axis fused data from Motion Processing Library
- Tri-axis angular rate sensor (gyro) with full-scale range of ±250, ±500, ±1000, and ±2000°/second
- Tri-axis accelerometer with a programmable full-scale range of ±2 g, ±4 g, ±8 g, and ±16 g
- Tri-axis compass with a full-scale range of ±4800 µT
- Reduced settling effects and sensor drift by elimination of board-level cross-axis alignment errors between accelerometer, gyroscope, and compass
- Digital Motion Processing™ (DMP™) engine offloads complex MotionFusion, sensor timing synchronization, and gesture detection
- MotionApps™ Platform support for Android, Windows 8, and embedded applications
- Embedded algorithms for run-time bias and compass calibration; no user-intervention required
- Digital-output temperature sensor
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- Digital input on FSYNC pin to support video electronic image stabilization and GPS
- Programmable interrupt supports gesture recognition, panning, zooming, scrolling, tap detection, and shake detection
- VDD supply voltage range of 2.4 V to 3.6 V
- Gyro operating current: 3.2 mA (full power, gyro 1 kHz ODR)
- Gyro + Accelerometer operating current: 3.4 mA (full power, gyro at 1 kHz ODR, accelerometer at 4 kHz ODR)
- Accelerometer low-power-mode operating current: 6.4 µA at 0.98 Hz
- 400 kHz Fast-Mode I²C or up to 1 MHz SPI serial host interfaces
- On-chip timing generator with ±1% frequency variation over full temperature range
- User self-test
- 10,000 g shock tolerant
- Smallest and thinnest package for portable devices: 3 x 3 x 1 mm
- RoHS and green compliant
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| Applications |
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- Smartphones
- Tablets
- 3D remote controls for internet-connected DTVs and set-top boxes
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- Motion-based game controllers and 3D mice
- Motion-based portable gaming
- Wearable sensors for health, fitness, and sports
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