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