MPU9250 9-Axis Sensor Module

The MPU-9250 ( MPU - 9250 ) is a 9-axis motion tracking device that combines a 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer and a Digital Motion Processor™ (DMP) all in a small board available as a pin-compatible upgrade from the MPU-6515. With its dedicated I2C sensor bus, the MPU-9250 directly provides complete 9-axis MotionFusion™ output. The MPU-9250 MotionTracking device, with its 9-axis integration, on-chip MotionFusion™, and run-time calibration firmware, enables manufacturers to eliminate the costly and complex selection, qualification, and system level integration of discrete devices, guaranteeing optimal motion performance for consumers. MPU-9250 is also designed to interface with multiple non-inertial digital sensors, such as pressure sensors, on its auxiliary I2C port.

Feature & Specifications:

3-axis Gyroscope Features

• Digital-output X-, Y-, and Z-Axis angular rate sensors (gyroscopes) with a user-programmable full-scale range of ±250, ±500, ±1000, and ±2000°/secand integrated 16-bit ADCs
• Digitally-programmable low-pass filter
• Gyroscope operating current: 3.2mA
• Sleep mode current: 8μA
• Factory calibrated sensitivity scale factor
• Self-test

3-axis Accelerometer Features

• Digital-output triple-axis accelerometer with a programmable full-scale range of ±2g, ±4g, ±8g and ±16g and integrated 16-bit ADCs
• Accelerometer normal operating current: 450μA
• Low power accelerometer mode current: 8.4μA at 0.98Hz, 19.8μA at 31.25Hz
• Sleep mode current: 8μA
• User-programmable interrupts
• Wake-on-motion interrupt for low power operation of applications processor
• Self-test

 3-axis Magnetometer Features

• 3-axis silicon monolithic Hall-effect magnetic sensor with magnetic concentrator
• Wide dynamic measurement range and high resolution with lower current consumption.
• Output data resolution of 14 bit (0.6μT/LSB)
• Full-scale measurement range is ±4800μT
• Magnetometer normal operating current: 280μA at 8Hz repetition rate
• Self-test function with the internal magnetic source to confirm magnetic sensor operation on end products

 Additional Features

• Auxiliarymaster I2C bus for reading data from external sensors(e.g. pressure sensor)
• Digital-output temperature sensor
• VDD supply voltage range of 2.4–3.6V
• VDDIO reference voltage for auxiliary I2C devices
• Smallest and thinnest QFNpackage for portable devices:3x3x1mm
• Minimal Cross-axis sensitivity between the accelerometer, gyroscope and magnetometer axes
• 512byte FIFO buffer enables the applications processor to read the data in bursts
• 10,000g shock tolerant
• 400kHz Fast Mode I2C for communicating with all registers
• 1MHz SPI serial interface for communicating with all registers
• 20MHz SPI serial interface for reading sensor and interrupt registers
• MEMS structure hermetically sealed and bonded at the wafer level