The ADXL345XRL7 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16 g. Digital output data is formatted as 16-bit two’s complement and is accessible through either an SPI (3- or 4-wire) or I2C digital interface.

Applications:

• Mobile device orientation detection
• Tablet and laptop screen orientation
• Gaming and virtual reality input devices
• Hard disk drive (HDD) active protection
• Sports and fitness devices

Features:

• Ultralow power: as low as 23 μA in measurement mode and 0.1 μA in standby mode at VS = 2.5 V
• Power consumption scales automatically with bandwidth
• User-selectable resolution: Fixed 10-bit resolution, Full resolution (13-bit)
• Embedded memory management for data storage
• Single tap/double tap detection
• Activity/inactivity monitoring
• Free-fall detection
• Supply voltage: 2.0 V to 3.6 V
• I/O voltage: 1.7 V to VS
• SPI (3- and 4-wire) and I2C digital interfaces
• Flexible interrupt modes configurable to interrupt sources
• Measurement ranges selectable via software
• Bandwidth selectable via software
• Operating temperature range: −40°C to +85°C
• Shock survival: 10,000 g
• RoHS/WEEE lead-free compliant

Benefits:

• The ADXL345XRL7 is ideal for mobile devices due to its low power consumption and small size.
• Its high resolution and selectable measurement ranges provide flexibility in a variety of applications.
• The embedded memory management and flexible interrupt modes simplify system design and reduce processor overhead.
• Its robustness against shock allows reliable operation in harsh environments.

Additional Details:

The ADXL345XRL7 incorporates a built-in memory management system that stores sensor data, reducing the need for constant communication with the host processor and extending battery life in portable devices. Its ability to detect single and double taps, as well as activity and inactivity, makes it well-suited for power-saving applications where motion detection is critical. The device is available in a small, thin LFCSP package (3 mm × 5 mm × 1 mm), making it suitable for space-constrained applications.

The SPI and I2C digital interfaces allow for easy integration with microcontrollers and other digital systems. The ability to select the measurement range via software enables dynamic adjustment of sensitivity and resolution based on the specific application requirements. The device is designed to operate over a wide temperature range, making it suitable for a variety of environmental conditions.