Bosch BMA400 Ultra-Low Power 3-Axis Accelerometer, ±2/±4/±8/±16g, I²C/SPI, –40°C~85°C
The Bosch BMA400 is a 3-axis, ultra-low power digital accelerometer designed for always-on applications in wearables, IoT, and mobile devices. It features a 12-bit digital output with selectable full-scale ranges (±2g to ±16g), operates from 1.71V to 3.6V, and communicates via I²C or SPI interfaces.
Features
- Ultra-low power consumption: 3.5 µA typical at 1 Hz ODR, 0.2 µA in sleep mode
- 12-bit digital accelerometer with configurable ranges: ±2g, ±4g, ±8g, ±16g
- Dual interface support: I²C (up to 3.4 MHz) and SPI (4-wire, up to 10 MHz)
- Wide operating temperature range: -40°C to +85°C
- Integrated 1024-byte FIFO buffer and advanced on-chip interrupt engine
Out of stock
The Bosch BMA400 is a MEMS-based, 3-axis accelerometer engineered for extreme power efficiency in battery-powered devices. Its core sensing element provides high-resolution 12-bit digital data across four user-selectable measurement ranges, enabling precise motion detection from subtle gestures to high-impact shocks. The sensor’s architecture is optimized for minimal current draw, supporting always-on context awareness without compromising battery life.
Communication and system integration are facilitated through a flexible I²C or SPI digital interface, allowing direct connection to microcontrollers like ARM Cortex-M, ESP32, and nRF52 series. The integrated FIFO buffer and configurable interrupt engine offload processing tasks from the host MCU, triggering events based on specific motion patterns such as activity recognition, single/double-tap detection, and orientation change. The device is specified for reliable operation across industrial temperature extremes.
Additional Information
| Weight | 0.00002 kg |
|---|---|
| Dimensions | 0.2 × 0.2 cm |
