BMI055

The BMI055 is an ultra-small, 6 axis inertial sensor, consisting of: A digital, triaxial 12bit acceleration sensor and a digital, triaxial 16bit, ±2000°/s gyroscope. The BMI055 allows very low-noise measurement of angular rates and accelerations in 3 perpendicular axes and thus senses tilt, motion, shock and vibration in cellular phones, handhelds, computer peripherals, man-machine interfaces, remote and game controllers.

With its ultra-small footprint of only 3 mm x 4.5 mm the BMI055 is unique in the class of low-noise inertial measurement units. On top, the BMI055 integrates a multitude of features that facilitate its use especially in the area of motion detection applications, such as device orientation measurement, gaming, HMI and menu browser control.

Applications

  • Activity monitoring, step-counting
  • Navigation
  • Vibration measurement, also for active damping
  • Six-dimensional tracking of trajectories
  • Flat detection, tap sensing, menu scrolling
  • Tilt compensation for electronic compass
  • Advanced power management for mobile devices
  • Shock and free-fall detection
  • Image stabilization
 
 

Parameter Technical data
Digital resolution Accelerometer (A): 12 bit
Gyroscope (G): 16bit
Resolution (A): 0,98 mg
(G): 0.1°/s
bandwidth set to 50 Hz
Measurement ranges
(programmable)
(A): ± 2 g, ± 4 g, ± 8 g, ± 16 g
(G): ± 125°/s, ± 250°/s, ± 500°/s, ± 1000°/s, ± 2000°/s
Sensitivity
(calibrated)
(A): ± 2 g 1024 LSB/g
± 4 g 512 LSB/g
± 8 g 256 LSB/g
± 16 g 128 LSB/g
(G): ± 125°/s 262.4 LSB/°/s
± 250°/s: 131.2 LSB/°/s
± 500°/s: 65.6 LSB/°/s
± 1000°/s: 32.8 LSB/°/s
± 2000°/s: 16.4 LSB/°/s
Zero point offset (A): ± 70mg, (G): ± 1°/s
Noise density (typ.) (A): 150μg/√Hz
(G): 0.014 °/s/√Hz
Bandwidths (progr.) 1000Hz … 8 Hz
Digital inputs/outputs SPI, I²C, 4x digital
interrupts
Supply voltage (VDD) 2.4 … 3.6 V
I/0 supply voltage
(VDDIO)
1.2 … 3.6 V
Temperature range -40 … +85°C
Current consumption
(Full operation)
5.15 mA
Current consumption
(Accelerometer
wake-up mode)
< 10 μA
FIFO data buffer (A) 32 samples depth /
(G) 100 samples
(each axis)
LGA package 3 x 4.5 x 0.95 mm³
Shock resistance 10,000 g x 200 μs
 
 

Type of document Download
Flyer BST-BMI055-FL000-01
Datasheet BST-BMI055-DS000-08