Bosch BMA423 3-Axis Accelerometer Sensor, ±16g, Ultra-Low Power, Step Counter & Activity Recognition, I²C/SPI, LGA-12
The Bosch BMA423 is a digital 3-axis accelerometer in an ultra-compact LGA-12 package, designed for low-power wearable and IoT applications. It features programmable ranges up to ±16g, supports I²C and SPI communication, and includes integrated step counting and activity recognition algorithms for easy integration with microcontrollers like Arduino, ESP32, and STM32.
Features
- Digital 3-axis accelerometer with programmable full-scale ranges (±2g, ±4g, ±8g, ±16g).
- Ultra-low power consumption (~150 µA) ideal for battery-powered wearables and IoT devices.
- Integrated 1 KB FIFO buffer and on-chip step counter & activity recognition algorithms.
- Supports both I²C and SPI (3-wire/4-wire) digital interfaces for flexible system integration.
- Compact LGA-12 surface-mount package (2mm x 2mm x 0.95mm) with an operating temperature of -40°C to +85°C.
Out of stock
The Bosch BMA423 is a MEMS-based, digital 3-axis accelerometer engineered for precision motion sensing in space-constrained, power-sensitive applications. Its core utilizes a capacitive sensing principle to deliver high-resolution 12-bit acceleration data across four user-selectable full-scale ranges, accommodating everything from subtle gestures to high-impact activities. The sensor’s signal is conditioned by a programmable low-pass filter with bandwidths up to 684Hz, enabling optimal noise reduction for specific use cases.
Designed for seamless integration, the BMA423 operates from a dual-supply architecture (core: 1.62V-3.6V, I/O: 1.2V-3.6V) and features two configurable interrupt pins (INT1, INT2) to efficiently notify the host processor of events like data ready, activity detection, or FIFO thresholds being met. This combination of low-power operation, onboard intelligence, and robust digital interface support makes it a foundational component for advanced motion analysis in consumer electronics and industrial monitoring systems.
Additional Information
| Weight | 0.005 kg |
|---|---|
| Dimensions | 2 × 2 × 0.95 cm |
