Description
The ADXL345 is a high-performance, ultra-low power 3-axis digital accelerometer designed for precise motion, vibration, tilt, and shock sensing applications. Featuring a high-resolution 13-bit measurement system with selectable measurement ranges of ±2g, ±4g, ±8g, and ±16g, this sensor delivers accurate acceleration data for both static and dynamic motion analysis.
The ADXL345 communicates through both I²C and SPI interfaces, making it easy to integrate with Arduino, Raspberry Pi, STM32, ESP32, ESP8266, and other microcontrollers. Its built-in FIFO memory, programmable interrupts, activity detection, inactivity monitoring, free-fall detection, and tap recognition significantly reduce processor workload while improving system responsiveness.
With an operating current of only 140µA (typ.), the ADXL345 is ideal for battery-powered embedded systems, wearable electronics, industrial monitoring equipment, robotics, IoT devices, consumer electronics, and portable instruments requiring reliable motion sensing and low power consumption.
Note: Product images are provided for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability. For complete electrical characteristics and application information, please refer to the datasheet available in the Attachment section.
Features
- High-performance 3-axis digital accelerometer
- High-resolution 13-bit measurement
- User-selectable measurement ranges: ±2g, ±4g, ±8g and ±16g
- Ultra-low power operation for battery-powered applications
- Built-in FIFO memory reduces processor load
- SPI (3-wire and 4-wire) and I²C communication interfaces
- Single-tap and double-tap detection
- Activity and inactivity monitoring
- Free-fall detection
- Programmable bandwidth and measurement range
- Flexible programmable interrupt outputs
- 10,000g shock survival capability
- Compact LGA-14 surface-mount package
- Suitable for industrial and consumer applications
Benefits
- Provides highly accurate motion and tilt measurements
- Improves system performance with built-in intelligent motion detection
- Extends battery life through ultra-low power consumption
- Reduces MCU processing using integrated FIFO memory
- Supports easy integration with popular development platforms
- Enhances reliability in portable and industrial devices
- Ideal for compact embedded electronic designs
- Offers stable and precise digital output for real-time sensing applications
Applications
- Motion Detection Systems
- Tilt Sensing Applications
- Wearable Electronics
- Fitness Trackers
- Industrial Automation
- Robotics
- Drone Flight Controllers
- IoT Devices
- Consumer Electronics
- Medical Equipment
- Shock and Vibration Monitoring
- Asset Tracking Devices
- Gaming Controllers
- Navigation Systems
- Data Loggers
- Portable Measurement Instruments
- Embedded System Development
- Arduino Projects
- ESP32 & STM32 Development
- Educational and Research Projects
Package Includes
- 1 x ADXL345 LGA-14 3-Axis Digital Accelerometer Sensor IC
Specifications
| Parameter | Specification |
|---|---|
| Product Name | ADXL345 |
| Device Type | 3-Axis Digital Accelerometer |
| Package | LGA-14 |
| Mounting Type | SMD / SMT |
| Sensing Axis | X, Y, Z |
| Measurement Range | ±2g, ±4g, ±8g, ±16g |
| Resolution | 13-bit |
| Communication Interface | I²C, SPI |
| Output Type | Digital |
| Supply Voltage | 2V to 3.6V |
| Operating Current | 0.14 mA (Typical) |
| Operating Temperature | -45°C to +105°C |
| Dimensions | 5 × 3 × 0.98 mm |
| Shipping Weight | 0.008 kg |
| Shipping Dimensions | 8 × 4 × 2 cm |
