描述

ADXL345BCCZ-RL7 ADXL345 Series Attitude Sensor 3-axletree ±2 g/±4 g/±8 g/±16 g Digital Accelerometer

I. Main features
1. Package and size: It adopts a 14-pin LGA package with a compact size of 3.00mm×5.00mm×1.00mm (or 0.98mm height).
2. Measurement range: It can measure the acceleration range of ±2g, ±4g, ±8g and ±16g, which can be programmed.
3. Resolution: Up to 13 bits, it can provide a sensitivity of 0.0078g/LSB, which can accurately capture tiny acceleration changes.
4. Digital interface: It supports I2C and SPI digital interfaces for easy integration with MCU (microcontroller).
Low power consumption: Low power consumption design, suitable for battery-powered devices. In measurement mode, the power consumption is as low as 23μA (typical value); in standby mode with VS=2.5V, the power consumption is 0.1μA (typical value). The power consumption will also automatically adjust with the bandwidth.
5. Operating voltage: The operating voltage range is 1.62V to 3.48V (or 2.0V to 3.6V), and the typical operating voltage is 2.5V.
6. Output data rate: Programmable, ranging from 1Hz to 100Hz.
7. Power supply rejection ratio (PSRR): Typical value is 60dB.
8. Shock resistance: 5000g (typical value), 10000g electric shock survival rate.
9. Operating temperature range: -40°C to +85°C.

2. Functions and applications
The main function of ADXL345BCCZ-RL7 is to measure acceleration, which is suitable for various applications such as motion detection, tilt detection, impact detection, etc. Through its digital interface, it can easily communicate with microcontrollers or other digital devices. Specific application scenarios include but are not limited to:

1. Motion tracking devices: can be used to monitor the user’s motion status and posture.
2. Mobile phones and tablets: can detect the tilt angle of the device and realize automatic screen rotation.
3. Game controllers and VR devices: can capture user movements for a more immersive interactive experience.
4. Medical instruments: used for health monitoring and clinical monitoring.
5. Industrial instruments: used to monitor and measure acceleration changes in industrial equipment.
6. Personal navigation devices: provide motion data to assist navigation.
7. Hard disk drive (HDD) protection: detect shock and vibration to protect hard disk data.

III. Other features
1. The measurement range and bandwidth can be selected through serial commands.
2. First-in-first-out (FIFO) technology is used to minimize the host processor load.
3. Provides single-tap/double-tap detection, activity/inactivity monitoring, and free fall detection.

In summary, the ADXL345BCCZ-RL7 is a small, thin, ultra-low power, high-resolution three- accelerometer suitable for a variety of electronic devices that require high-performance acceleration measurement.