Advertisement
· Gyroscope operating current: 3.2mA
· Sleep mode current: 8uA
· Factory calibrated sensitivity scale factor
· Self-test
3.2 Accelerometer Features
The triple-axis MEMS accelerometer in MPU-9250 includes a wide range of 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: 450uA
· Low power accelerometer mode current: 8.4uA at 0.98Hz, 19.8uA at 31.25Hz
· Sleep mode current: 8uA
· User-programmable interrupts
· Wake-on-motion interrupt for low power operation of application processor
· Self-test
3.3 Magnetometer Features
The triple-axis MEMS magnetometer in MPU-9250 includes a wide range of features:
· 3-axis silicon monolithic Hall-effect magnetic sensor with a magnetic concentrator
· Wide dynamic measurement range and high resolution with low current
consumption
· Output data resolution is 14 bit (0.6μT/LSB)
· Full scale measurement range is ±4800 μT
· Magnetometer normal operating current: 280uA at 8Hz repetition rate
· Self-test function with internal magnetic source to confirm magnetic sensor
operation on end products
3.4 Additional Features
The MPU-9250 includes the following additional features:
· Auxiliary master I2C bus for reading data from external sensors (e.g., pressure
sensor)
· 3.5mA operating current when all 9 motion sensing axes and the DMP are enabled
· VDD supply voltage range of 2.4 ~ 3.6v
· VDDIO reference voltage for auxiliary I2C devices
· Smallest and thinnest QFN package for portable devices: 3x3x1mm
· Minimal cross-axis sensitivity between the accelerometer, gyroscope and
magnetometer axes
· 512 byte FIFO buffer enables the application processor to read the data in bursts
· Digital-output temperature sensor
· User-programmable digital filters for gyroscope, accelerometer, and temp sensor
· 10,000 g shock tolerant
· 400kHz Fast Mode I2C for communicating with all registers
· 1MHz SPI serial interface for communication with all registers
· 20MHz SPI serial interface for reading sensor and interrupt registers
· MEMS structure hermetically sealed and bonded at wafer level
· RoHS and Green compliant
OSTSen-9250 v1.0
3 of 9
Hara Systems Inc.
Advertisement
