TDK InvenSense MPU-9250 9-Axis Gyroscope Accelerometer Magnetometer Module I2C
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MPU-9250 is a multi-chip module (MCM) consisting of two dies integrated into a single QFN package. One die houses the 3-Axis gyroscope and the 3-Axis accelerometer. The other die houses the AK8963 3-Axis magnetometer from Asahi Kasei Microdevices Corporation. Hence, the MPU-9250 is a 9-axis MotionTracking device that combines a 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer and a Digital Motion Processor (DMP) all in a small 3x3x1mm package 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.
MPU-9250 features three 16-bit analog-to-digital converters (ADCs) for digitizing the gyroscope outputs, three 16-bit ADCs for digitizing the accelerometer outputs, and three 16-bit ADCs for digitizing the magnetometer outputs. For precision tracking of both fast and slow motions, the parts feature a user-programmable gyroscope full-scale range of 250, 500, 1000, and 2000 deg/sec (dps), a user-programmable accelerometer full-scale range of 2g, 4g, 8g, and 16g, and a magnetometer full-scale range of 4800.
Other industry-leading features include programmable digital filters, a precision clock with 1% drift from -40C to 85C, an embedded temperature sensor, and programmable interrupts. The device features I2C and SPI serial interfaces, a VDD operating range of 2.4V to 3.6V (this module operates on 3.3 to 5V), and a separate digital IO supply, VDDIO from 1.71V to VDD.
Communication with all registers of the device is performed using either I2C at 400kHz or SPI at 1MHz. For applications requiring faster communications, the sensor and interrupt registers may be read using SPI at 20MHz.
Sensor Model: MPU-9250
Power Supply: 3-5V (on-board LDO)
Communication: Standard I2C communication protocol
Gyro Range: 250 / 500 / 1000 / 2000 deg/s
Acceleration Range: 2 / 4 / 8 / 16G
Magnetic Field Range: 4800uT
Module size 15mm * 25mm
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