Overview
The ADXL345BCCZ-RL, produced by Analog Devices Inc., is a small, thin, ultralow power, 3-axis accelerometer. It offers high-resolution (13-bit) measurement capabilities up to ±16 g, making it suitable for a wide range of applications. The device measures both static acceleration of gravity in tilt-sensing applications and dynamic acceleration resulting from motion or shock. Its digital output data is formatted as 16-bit twos complement and is accessible through either SPI (3- or 4-wire) or I2C digital interfaces.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Operating Voltage Range (VS) | 2.0 | 2.5 | 3.6 | V |
| Interface Voltage Range (VDD I/O) | 1.7 | 1.8 | VS | V |
| Supply Current (ODR ≥ 100 Hz) | 140 | µA | ||
| Supply Current (ODR < 10 Hz) | 30 | µA | ||
| Standby Mode Leakage Current | 0.1 | µA | ||
| Acceleration Range | ±2 g | ±4 g | ±16 g | |
| Output Data Rate | 0.1 | 3200 | Hz | |
| Resolution | 13-bit | |||
| Package Dimensions | 3 mm × 5 mm × 1 mm | |||
| Temperature Range (Powered) | -40°C | +105°C |
Key Features
- Ultralow power consumption: as low as 23 µA in measurement mode and 0.1 µA in standby mode at VS = 2.5 V (typical).
- Small and thin: 3 mm × 5 mm × 1 mm LGA package.
- High resolution (13-bit) measurement at up to ±16 g.
- Digital output data formatted as 16-bit twos complement, accessible through SPI (3- or 4-wire) or I2C digital interfaces.
- Special sensing functions: activity and inactivity sensing, tap sensing, and free-fall sensing, which can be mapped to two interrupt output pins.
- Integrated memory management system with a 32-level FIFO buffer to minimize host processor activity and lower system power consumption.
Applications
- Handsets.
- Medical instrumentation.
- Gaming and pointing devices.
- Industrial instrumentation.
- Personal navigation devices.
- Hard disk drive (HDD) protection.
- Defense and aerospace applications (ADXL345-EP model).
Q & A
- What is the ADXL345BCCZ-RL used for? The ADXL345BCCZ-RL is a 3-axis accelerometer used for measuring static and dynamic acceleration in various applications such as handsets, medical instrumentation, and industrial instrumentation.
- What are the power consumption characteristics of the ADXL345BCCZ-RL? The device has ultralow power consumption, with as low as 23 µA in measurement mode and 0.1 µA in standby mode at VS = 2.5 V (typical).
- What are the dimensions of the ADXL345BCCZ-RL package? The package dimensions are 3 mm × 5 mm × 1 mm.
- What are the special sensing functions of the ADXL345BCCZ-RL? The device includes activity and inactivity sensing, tap sensing, and free-fall sensing, which can be mapped to two interrupt output pins.
- How does the ADXL345BCCZ-RL manage data storage? It has an integrated memory management system with a 32-level FIFO buffer to minimize host processor activity and lower system power consumption.
- What are the communication interfaces available for the ADXL345BCCZ-RL? The device supports SPI (3- or 4-wire) and I2C digital interfaces.
- What is the resolution of the ADXL345BCCZ-RL? The device has a high resolution of 13-bit measurement.
- What is the operating temperature range of the ADXL345BCCZ-RL? The operating temperature range is -40°C to +105°C.
- Is the ADXL345BCCZ-RL suitable for defense and aerospace applications? Yes, the ADXL345-EP model supports defense and aerospace applications with extended industrial temperature range and other specific requirements.
- How can I evaluate the ADXL345BCCZ-RL? Evaluation can be done using the EVAL-ADXL345Z-DB datalogger/development board or the EVAL-ADXL345Z breakout board.
