Six-Axis (Gyro + Accelerometer) MEMS MotionTracking™ Devices

Overview

Click to Enlarge

The MPU-6000™ family of parts are the world’s first 6-axis MotionTracking devices designed for the low power, low cost, and high performance requirements of consumer electronics products.

The MPU-6000 family incorporates InvenSense’s MotionFusion™ and run-time calibration firmware that enables manufacturers to eliminate the costly and complex selection, qualification, and system level integration of discrete devices in motion-enabled products, and guarantees that sensor fusion algorithms and calibration procedures deliver optimal performance for consumers.

Motion interface is rapidly becoming a key function in many consumer electronics devices including smartphones, tablets, gaming consoles, and smart-TVs as it provides an intuitive way for consumers to interact with electronic devices by tracking motion in free space and delivering these motions as input commands.

The devices combine a 3-axis gyroscope and a 3-axis accelerometer on the same silicon die together with an onboard Digital Motion Processor™ (DMP™) capable of processing complex 9-axis MotionFusion algorithms. The parts’ integrated 9-axis MotionFusion algorithms access external magnetometers allowing the devices to gather a full set of sensor data. The devices are offered in the same 4x4x0.9 mm QFN footprint and pinout as the current MPU-3000™ family of integrated 3-axis gyroscopes, providing a simple upgrade path and making it easy to fit on space constrained boards.

The InvenSense MotionApps™ Platform that comes with the devices abstracts motion-based complexities, offloads sensor management from the operating system and provides a structured set of APIs for application development.

For precision tracking of both fast and slow motions, the parts feature a user-programmable gyro full-scale range of ±250, ±500, ±1000, and ±2000°/sec (dps) and a user-programmable accelerometer full-scale range of ±2g, ±4g, ±8g, and ±16g.

The MPU-6000 family is comprised of four parts, with features summarized in the table below. The MPU-6000/6050 devices are targeted for smartphone, tablet, and wearable sensor applications, while the MPU-6100/6150 devices are targeted at digital TV, set-top-box and game console remote controls.

All parts feature an industry-leading 6-axis supply current of 3.8mA. To save space, the package size of the devices has been driven down to a revolutionary footprint of 4x4x0.9mm (QFN). Additional features include an embedded temperature sensor and an on-chip oscillator with ±1% variation over the operating temperature range.

System Diagram

Click to Enlarge

Markets

• Smartphones
• Tablets
• Handheld Game Devices
• Remote Controls for Game Consoles
• Digital TV Remote Controls
• Wearable Sensors

Features

• Digital-output of 6 or 9-axis MotionFusion data in rotation matrix, quaternion, Euler Angle, or raw data format
• Tri-Axis angular rate sensor (gyro) with a sensitivity up to 131 LSBs/dps and a full-scale range of ±250, ±500, ±1000, and ±2000dps
• Tri-Axis accelerometer with a programmable full scale range of ±2g, ±4g, ±8g and ±16g
• Reduced settling effects and sensor drift by elimination of board-level cross-axis alignment errors between accelerometers and gyroscopes
• Digital Motion Processing™ (DMP™) engine offloads complex MotionFusion, sensor timing synchronization and gesture detection
• MotionApps™ Platform support for Android, Linux, and Windows, with Windows Phone platforms on the roadmap
• Embedded algorithms for run-time bias and compass calibration. No user intervention required
• Digital-output temperature sensor
• Digital input on FSYNC pin to support video Electronic Image Stabilization and GPS
• Programmable interrupt supports gesture recognition, panning, zooming, scrolling, free fall interrupt, high-G interrupt, zero-motion detection, tap detection, and shake detection
• VDD Supply voltage range of 2.375V–3.46V; VLOGIC (MPU-6050/MPU-6150) at 1.8V±5% or VDD
• Gyro operating current: 3.6mA (full power, gyro at all rates)
• Gyro + Accel operating current: 3.8mA (full power, gyro at all rates, accel at 1kHz sample rate)
• Accel low power mode operating currents: 10uA at 1Hz, 20uA at 5Hz, 70uA at 20Hz, 140uA at 40Hz
• Full Chip Idle Mode Supply Current: 5µA
• 400kHz Fast Mode I²C or up to 20MHz SPI (MPU-6000/MPU-6100 only) serial host interfaces
• On-chip timing generator with ±1% frequency variation over full temperature range
• User self test
• 10,000g shock tolerant
• Smallest and thinnest package for portable devices (4x4x0.9mm QFN)
• RoHS and Green compliant