ADXL355 DIGITAL ACCELEROMETER¶

Introduction¶

Acceleration measurement is a common requirement in many embedded systems. The ADXL355 is a high-precision, low-power, three-axis digital accelerometer suitable for various applications such as motion detection, tilt measurement, and vibration monitoring.

The ADXL355 features low noise density, high resolution, and a wide measurement range, making it ideal for applications requiring accurate and reliable acceleration data.

Key Features (Summary)¶

• Low Noise: Typical noise density of approximately 22.5 µg/√Hz (all axes)
• Low Temperature Drift: 0 g offset variation with temperature ≤ 0.15 mg/°C (all axes)
• Low Power Consumption: Measurement mode approximately 200 µA; standby approximately 21 µA
• Selectable Measurement Ranges: ±2 g, ±4 g, ±8 g (model/configuration dependent)
• Interface: SPI and I2C (digital output)
• High Resolution: Built-in 20-bit ADC, supports synchronous sampling and data interpolation
• Programmable Digital Filtering: Supports high/low-pass digital filtering
• Integrated Temperature Sensor and Self-Test Functionality
• Supply Voltage: 2.25 V to 3.6 V (with internal regulator enabled); typically 1.8 V ±10% when bypassing internal LDO
• Operating Temperature: -40°C to +125°C
• Package: 14-lead LCC, approximately 6.0 × 5.6 × 2.2 mm

Typical Applications¶

• Inertial Measurement Units (IMU), Attitude and Heading Reference Systems (AHRS)
• Platform Stabilization and Motion Compensation
• Structural Health Monitoring and Vibration Analysis
• Seismic/Shock Detection and Imaging
• Tilt Sensing, Robotics, IoT Sensor Nodes, and Condition Monitoring

Technical Specifications (Summary Table)¶