ADI ADXL350BCEZ-RL

The high-performance ADXL350 is a small, thin, low-power 3-axis accelerometer with high resolution (13-bit) and selectable measurement ranges up to ±8g. The ADXL350 delivers industry-leading noise and temperature performance, ensuring application robustness with minimal calibration effort. Digital output data is in 16-bit two's complement format, accessible via SPI (3-wire or 4-wire) or I2C digital interfaces.

The ADXL350 is ideally suited for high-performance portable applications. It can measure static gravitational acceleration in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. With high resolution (2mg/LSB), it is capable of resolving tilt changes of less than 1.0°.

The device offers multiple special detection functions. Activity and inactivity detection functions detect the presence or absence of motion and whether acceleration on any axis exceeds a user-set threshold. Tap detection can identify single-tap and double-tap events. Free-fall detection determines whether the device is in free fall. These functions can be mapped to either of two interrupt output pins.

Low-power modes enable motion-based intelligent power management, allowing threshold sensing and motion acceleration measurement at extremely low power consumption.

The ADXL350 is available in a 3mm×4mm×1.2mm, 16-lead small cavity laminate package.

• Excellent zero/offset accuracy and stability with min/max specifications
• Ultra-low power consumption: as low as 45μA in measurement mode and 0.1μA in standby mode (typical, at Vs = 2.5V)
• Power consumption scales automatically with bandwidth
• User-selectable resolution
• 10-bit fixed resolution
• Full resolution with resolution increasing with g range, up to 13 bits at ±8g (maintaining 2mg/LSB scale factor across all g ranges)
• Embedded 32-level FIFO buffer minimizes host processor loading
• Single-tap/double-tap detection and free-fall detection
• Activity/inactivity monitoring
• Supply voltage range: 2.0V to 3.6V
• I/O voltage range: 1.7V to Vs
• SPI (3-wire and 4-wire) and I2C digital interfaces
• Flexible interrupt modes mappable to either interrupt pin
• Measurement range selectable via serial command
• Bandwidth selectable via serial command
• Wide temperature range (-40°C to +85°C)
• Shock resistance: 10,000g
• Lead-free/RoHS compliant
• Small and thin: 4mm × 3mm × 1.2mm cavity LGA package

• Portable consumer electronics
• High-performance medical and industrial applications