Overview
The ADXL357BEZ is a high-performance, low-noise, 3-axis accelerometer produced by Analog Devices Inc. This device is part of the ADXL357 series, which includes models with digital output. The ADXL357BEZ is known for its low 0 g offset drift, ultralow noise spectral density, and low power consumption, making it suitable for a wide range of precision applications.
The accelerometer features a hermetic package that ensures optimal long-term stability and minimal offset drift over temperature. It supports multiple measurement ranges of ±10 g, ±20 g, and ±40 g, making it versatile for various use cases.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Measurement Ranges | ±10 g, ±20 g, ±40 g | - |
| Sensitivity | 73.6 mV/g to 86.4 mV/g (±10 g), 36.8 mV/g to 43.2 mV/g (±20 g), 18.4 mV/g to 21.6 mV/g (±40 g) | mV/g |
| Noise Spectral Density | 75 µg/√Hz | µg/√Hz |
| 0 g Offset Drift vs. Temperature | 0.75 mg/°C maximum | mg/°C |
| Power Consumption (Measurement Mode) | 200 µA | µA |
| Power Consumption (Standby Mode) | 21 µA | µA |
| Voltage Supply Range | 2.25 V to 3.6 V | V |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 14-Lead LCC (6 mm x 6 mm x 2.2 mm) | - |
| Interface | Digital SPI and limited I²C | - |
| ADC Resolution | 20-bit | - |
Key Features
- Low noise spectral density of 75 µg/√Hz, ensuring high accuracy in measurements.
- Low 0 g offset drift of 0.75 mg/°C maximum, providing long-term stability.
- Low power consumption with 200 µA in measurement mode and 21 µA in standby mode.
- Support for multiple measurement ranges: ±10 g, ±20 g, and ±40 g.
- Digital output with SPI and limited I²C interfaces.
- 20-bit ADC for high-resolution data.
- Data interpolation routine for synchronous sampling.
- Programmable high- and low-pass digital filters.
- Integrated temperature sensor.
Applications
- Inertial measurement units (IMUs) and altitude and heading reference systems (AHRSs).
- Platform stabilization systems.
- Structural health monitoring.
- Seismic imaging.
- Tilt sensing.
- Robotics.
- Condition monitoring.
Q & A
- What are the measurement ranges supported by the ADXL357BEZ?
The ADXL357BEZ supports measurement ranges of ±10 g, ±20 g, and ±40 g.
- What is the noise spectral density of the ADXL357BEZ?
The noise spectral density is 75 µg/√Hz.
- What is the power consumption of the ADXL357BEZ in measurement mode?
The power consumption in measurement mode is 200 µA.
- What interfaces are supported by the ADXL357BEZ?
The device supports digital SPI and limited I²C interfaces.
- What is the ADC resolution of the ADXL357BEZ?
The ADC resolution is 20-bit.
- What is the operating temperature range of the ADXL357BEZ?
The operating temperature range is -40°C to +125°C.
- What type of package does the ADXL357BEZ use?
The device uses a 14-Lead LCC package (6 mm x 6 mm x 2.2 mm).
- Does the ADXL357BEZ have an integrated temperature sensor?
Yes, it has an integrated temperature sensor.
- What are some common applications of the ADXL357BEZ?
Common applications include IMUs, platform stabilization systems, structural health monitoring, seismic imaging, tilt sensing, robotics, and condition monitoring.
- How does the ADXL357BEZ ensure long-term stability?
The device ensures long-term stability through its hermetic package and minimal offset drift over temperature.
