Overview
The ADXL354BEZ-RL, manufactured by Analog Devices Inc., is a low noise density, low 0 g offset drift, and low power 3-axis MEMS accelerometer. This device is part of the ADXL35x series, which offers industry-leading performance in terms of noise, offset drift over temperature, and long-term stability. The ADXL354 is available in various measurement ranges, including ±2 g, ±4 g, and ±8 g, making it versatile for a wide range of precision applications.
The device is highly integrated in a compact 14-terminal LCC package, measuring 6 mm × 5.6 mm × 2.2 mm, which is ideal for space-constrained designs. Its low power consumption and hermetic package ensure long-term stability and minimal calibration needs, making it suitable for applications such as Structural Health Monitoring (SHM), orientation and navigation systems, and IoT sensor nodes.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Acceleration Range | ±2 g, ±4 g, ±8 g | - |
| Sensitivity (mV/g) | 400 (±2 g), 200 (±4 g) | mV/g |
| Bandwidth | 1.5 kHz | kHz |
| Output Type | Analog | - |
| Voltage - Supply | 2.25 V to 3.6 V | V |
| Operating Temperature | −40°C to +125°C | °C |
| Package | 14-terminal LCC (6 mm × 5.6 mm × 2.2 mm) | - |
| Power Consumption (Measurement Mode) | 150 μA | μA |
| Power Consumption (Standby Mode) | 21 μA | μA |
| Noise Spectral Density | 22.5 μg/√Hz | μg/√Hz |
| 0 g Offset vs. Temperature | 0.15 mg/°C maximum | mg/°C |
Key Features
- Low Noise Density: Ultralow noise spectral density of 22.5 μg/√Hz, enabling high-resolution vibration measurements and early detection of structural defects.
- Low 0 g Offset Drift: Minimal offset drift over temperature with a maximum of 0.15 mg/°C, ensuring long-term stability and minimal calibration needs.
- Low Power Consumption: Low power operation with 150 μA in measurement mode and 21 μA in standby mode, ideal for battery-powered devices and IoT applications.
- Selectable Measurement Ranges: Supports ±2 g, ±4 g, and ±8 g measurement ranges, making it versatile for various applications.
- Integrated Temperature Sensor: Built-in temperature sensor for temperature compensation and monitoring.
- Electromechanical Self Test: Self-test capability to ensure the device is functioning correctly.
- Programmable Filters and Bandwidth: User-adjustable analog output bandwidth and programmable high- and low-pass digital filters for the ADXL355 variant.
- Digital Interfaces: Supports SPI and I2C interfaces for easy integration into digital systems.
Applications
- Structural Health Monitoring (SHM): Ideal for detecting structural defects and monitoring the health of structures through low-level vibration measurements.
- Orientation and Navigation Systems: Used in unmanned aerial vehicles (UAVs) and other systems requiring precise tilt and orientation measurements.
- Internet of Things (IoT) Sensor Nodes: Suitable for wireless sensor networks due to its low power consumption and compact form factor.
- Inclinometers and IMUs: Provides repeatable tilt measurements under various conditions, making it ideal for inclinometers and Inertial Measurement Units (IMUs).
- Industrial Automation and Monitoring: Can be used in various industrial applications requiring precise acceleration measurements and low noise performance.
Q & A
- What are the measurement ranges supported by the ADXL354?
The ADXL354 supports measurement ranges of ±2 g, ±4 g, and ±8 g depending on the variant (ADXL354B and ADXL354C).
- What is the noise spectral density of the ADXL354?
The ADXL354 has an ultralow noise spectral density of 22.5 μg/√Hz.
- How much power does the ADXL354 consume in measurement mode?
The ADXL354 consumes 150 μA in measurement mode and 21 μA in standby mode.
- What is the operating temperature range of the ADXL354?
The operating temperature range is −40°C to +125°C.
- Does the ADXL354 have integrated temperature sensing?
Yes, the ADXL354 includes an integrated temperature sensor.
- What digital interfaces are supported by the ADXL354?
The ADXL354 supports SPI and I2C interfaces for digital communication.
- What is the package type and size of the ADXL354?
The ADXL354 comes in a 14-terminal LCC package measuring 6 mm × 5.6 mm × 2.2 mm.
- Is the ADXL354 suitable for IoT applications?
Yes, the ADXL354 is highly suitable for IoT applications due to its low power consumption and compact form factor.
- Does the ADXL354 have electromechanical self-test capability?
Yes, the ADXL354 includes an electromechanical self-test feature.
- What are some typical applications of the ADXL354?
The ADXL354 is used in Structural Health Monitoring, orientation and navigation systems, IoT sensor nodes, and various industrial automation and monitoring applications.
