Bosch BMA456 3-Axis Accelerometer Sensor, ±16g, Ultra-Low Power 14µA, Step Counter & Activity Recognition, I²C/SPI, LGA-12
The Bosch BMA456 is a 3-axis digital accelerometer in an ultra-compact LGA-12 package, designed for ultra-low-power wearable and IoT applications. It features a 16-bit resolution, programmable ranges up to ±16g, and integrated step counting and activity recognition, communicating via I²C or SPI interfaces compatible with 1.2V to 3.6V logic systems.
Features
- Ultra-low power consumption of 14µA (typical) in low-power mode for extended battery life.
- High-resolution 3-axis sensing with 16-bit digital output and programmable ranges (±2g, ±4g, ±8g, ±16g).
- Integrated intelligent features including step counter and activity recognition algorithms.
- Flexible digital interfaces: I²C and SPI (3-wire & 4-wire) for easy MCU integration (Arduino, Raspberry Pi, ESP32).
- Compact surface-mount LGA-12 package (2mm x 2mm x 0.65mm) ideal for space-constrained wearable designs.
Out of stock
The Bosch BMA456 is a MEMS-based 3-axis accelerometer engineered for precision motion sensing in power-sensitive applications. Its core utilizes a micromachined sensing element coupled with a high-resolution 16-bit ADC, providing accurate acceleration data across four user-selectable full-scale ranges. The sensor’s architecture is optimized for minimal quiescent current, making it a cornerstone for fitness trackers, smartwatches, and always-on IoT devices.
Advanced on-chip features include a configurable 1 kB FIFO buffer for efficient data management, programmable digital filters for noise reduction, and motion-triggered interrupts that allow the host processor to remain in sleep mode until a significant event occurs. The integrated step detection and activity recognition (like walking, running, stationary) algorithms offload processing from the main MCU, further conserving system power. Its wide VDDIO range from 1.2V to 3.6V ensures compatibility with modern low-voltage microcontrollers and system-on-chips.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 2 × 2 × 0.65 cm |
