IMU: BMI270
Small. Low power. Optimized for wearables.
BMI270
IMU combining accelerometer and gyroscope
The ultra-low power BMI270 is an IMU optimized for wearables providing precise acceleration, angular rate measurement and intelligent on-chip motion-triggered interrupt features.
The 6-axis sensor combines a 16-bit tri-axial gyroscope and a 16-bit tri-axial accelerometer featuring Bosch’s automotive-proven gyroscope technology. BMI270 includes several functionalities such as an integrated plug-and-play step counter/detector for wrist-worn devices. Moreover, the IMU is suitable for hearables, smart clothes, smart shoes, smart glasses and ankle bands.
Technical data
| Parameter | Technical data |
|---|---|
|
Parameter
Digital resolution
|
Technical data
Accelerometer (A): 16-bit or 0.06 mg/LSB
Gyroscope (G): 16-bit or 0.004 dps/LSB |
|
Parameter
Programmable measurement range & sensitivity
|
Technical data
(A): ±2 g: 16384 LSB/g
to (A): ±16 g: 2048 LSB/g (G): ±125 dps: 262.1 LSB/dps to (G): ±2000 dps: 16.4 LSB/dps |
|
Parameter
Zero-g/zero-rate offset
|
Technical data
(A): ±20 mg
(G): ±0.5 dps |
|
Parameter
Sensitivity error
|
Technical data
(A): ± 0.4%
(G): ± 0.4% (with CRT) |
|
Parameter
Temperature range
|
Technical data
-40 … +85 °C
|
|
Parameter
Temperature behaviour
(TCO; TCS) |
Technical data
(A): ±0.25 mg/K; ±0.004 %/K
(G): ±0.02 dps/K; ±0.02 %/K |
|
Parameter
Noise density
|
Technical data
(A): 160 µg/√Hz
(G): 0.008 dps/√Hz |
|
Parameter
Offset vs PCB strain
|
Technical data
(A): ±0.01 mg/µε
(G): ±1.5 mdps/µε |
|
Parameter
Filter BW (programmable)
|
Technical data
(A): 5 Hz … 684 Hz
(G): 11 Hz … 751 Hz |
|
Parameter
Output data rate (ODR)
|
Technical data
(A): 12.5 Hz … 1.6 kHz
(G): 25 Hz … 6.4 kHz |
|
Parameter
Digital inputs/outputs
|
Technical data
2x SPI; 2x I2C; AUX I/F; OIS I/F
2x digital interrupts |
|
Parameter
Supply voltage
|
Technical data
1.7 … 3.6 VDD
1.2 … 3.6 VDDIO |
|
Parameter
Current consumption
|
Technical data
685 µA at full ODR (aliasing-free)
|
|
Parameter
Package size
|
Technical data
2.5 x 3.0 x 0.8 mm³
14 pin LGA |
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