Inertial Measurement Unit: BMI270
The BMI270 is an ultra-low power smart IMU optimized for wearable and hearable applications. The IMU combines precise acceleration and angular rate measurement with intelligent on-chip motion-triggered interrupt features. The BMI270 includes intuitive gesture, context and activity recognition with an integrated plug-and-play step counter.
- Ultra low-power
- Optimized for wearable and hearable applications
- Includes intuitive activity, context and gesture recognition
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BHI360 Software Driver Link
Digital resolution
Accelerometer (A): 16-bit or 0.06 mg/LSB
Gyroscope (G): 16-bit or 0.004 dps/LSB
Gyroscope (G): 16-bit or 0.004 dps/LSB
Programmable measurement range & sensitivity
(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
to
(A): ±16 g: 2048 LSB/g
(G): ±125 dps: 262.1 LSB/dps
to
(G): ±2000 dps: 16.4 LSB/dps
Zero-g/zero-rate offset
(A): ±20 mg
(G): ±0.5 dps
(G): ±0.5 dps
Sensitivity error
(A): ± 0.4%
(G): ± 0.4% (with CRT)
(G): ± 0.4% (with CRT)
Temperature range
-40 … +85 °C
Temperature behaviour
(TCO; TCS)
(TCO; TCS)
(A): ±0.25 mg/K; ±0.004 %/K
(G): ±0.02 dps/K; ±0.02 %/K
(G): ±0.02 dps/K; ±0.02 %/K
Noise density
(A): 160 µg/√Hz
(G): 0.008 dps/√Hz
(G): 0.008 dps/√Hz
Offset vs PCB strain
(A): ±0.01 mg/µε
(G): ±1.5 mdps/µε
(G): ±1.5 mdps/µε
Filter BW (programmable)
(A): 5 Hz … 684 Hz
(G): 11 Hz … 751 Hz
(G): 11 Hz … 751 Hz
Output data rate (ODR)
(A): 12.5 Hz … 1.6 kHz
(G): 25 Hz … 6.4 kHz
(G): 25 Hz … 6.4 kHz
Digital inputs/outputs
2x SPI; 2x I2C; AUX I/F; OIS I/F
2x digital interrupts
2x digital interrupts
Supply voltage
1.7 … 3.6 VDD
1.2 … 3.6 VDDIO
1.2 … 3.6 VDDIO
Current consumption
685 µA at full ODR (aliasing-free)
Package size
2.5 x 3.0 x 0.8 mm³
14 pin LGA
14 pin LGA
