ADXL357BEZ Accelerometers: Pinout, Specification, Datasheet

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The ADXL357BEZ offers industry-leading noise, minimal offset drift over temperature, and long-term stability, enabling precision applications with minimal calibration. The low drift, low noise, and low power ADXL357 enables accurate tilt measurement in an environment with high vibration, such as airborne IMUs. The ADXL357 multifunction pin names may be referenced only by their relevant function for either the SPI or limited I 2 C interface.

The ADXL357 adds three high-resolution ADCs that use the analog 1.8 V supply as a reference to provide digital outputs insensitive to the supply voltage. The ADXL357 is programmable for ±10.24 g, ±20.48 g, and ±40.96 g full scale. The ADXL357 offers both SPI and I2C communications ports. The micromachined, sensing elements are fully differential, comprising the lateral x-axis and y-axis sensors and the vertical, teeter-totter z-axis sensors. The x-axis and y-axis sensors and the z-axis sensors go through separate signal paths that minimize offset drift and noise. The signal path is fully differential. The ADXL357 includes antialiasing filters before and after the high-resolution Σ-Δ ADC. User-selectable output data rates and filter corners are provided. The temperature sensor is digitized with a 12-bit successive approximation register (SAR) ADC.

1.Hermetic package offers excellent long-term stability

2.0g offset vs. temperature (all axes): 0.75 mg/°C maximum

3.Ultralow noise density (all axes): 80 µg/√Hz

4.Low power, VSUPPLY (LDO enabled): ADXL357 in measurement mode: 200µA; ADXL357 in standby mode: 21µA

5.ADXL357 digital output features: Digital serial peripheral interface (SPI)/limited I2C interfaces supported; 20-bit analog-to-digital converter (ADC); Data interpolation routine for synchronous sampling; Programmable high- and low-pass digital filters

6.Integrated temperature sensor

7.Voltage range options: VSUPPLY with internal regulators: 2.25V to 3.6V; V1P8ANA, V1P8DIG with internal low dropout (LDO) regulator bypassed: 1.8V typical ± 10%

8.Operating temperature range: −40°C to +125°C

9.14-terminal, 6 mm × 5.6 mm × 2.05 mm, LCC package, 0.26g

2 sets of spaced vias for populating 6-pin headers

Easily attachable to prototyping board or PCB

Small size and board stiffness minimize the impact on the system being monitored and acceleration measurements

Analog Devices Inc. ADXL357BEZ technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. ADXL357BEZ.

Inertial measurement units (IMUs)/altitude and heading reference systems (AHRSs)

Platform stabilization systems

Structural health monitoring

Seismic imaging

Tilt sensing

Robotics

Condition monitoring

Analog Devices (NASDAQ: ADI) is a world leader in the design, manufacture, and marketing of a broad portfolio of high performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs) used in virtually all types of electronic equipment. Since our inception in 1965, we have focused on solving the engineering challenges associated with signal processing in electronic equipment. Used by over 100,000 customers worldwide, our signal processing products play a fundamental role in converting, conditioning, and processing real-world phenomena such as temperature, pressure, sound, light, speed, and motion into electrical signals to be used in a wide array of electronic devices.

Download datasheets and manufacturer documentation for Analog Devices Inc. ADXL357BEZ.