GENERAL DESCRIPTION :

The analog output ADXL356 and the digital output ADXL357 are low noise density, low 0 g offset drift, low power, 3-axis accelerometers with selectable measurement ranges. The ADXL356B supports the ±10 g and ±20 g ranges, the ADXL356C supports the ±10 g and ±40 g ranges, and the ADXL357 supports 

the ±10 g, ±20 g, and ±40 g ranges. The ADXL356/ADXL357 offer 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. The low noise of the ADXL356 over higher frequencies is ideal for condition-based monitoring and other vibration sensing applications. The ADXL357 multifunction pin names may be referenced only by their relevant function for either the serial peripheral interface (SPI) or limited I²C interface.  

FEATURES： 

Hermetic package offers optimal long-term stability 

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

Ultralow noise spectral density (all axes): 75 μg/√Hz 

Low power, VSUPPLY (LDO regulator enabled) 

ADXL356 in measurement mode: 150 μA 

ADXL357 in measurement mode: 200 μA 

ADXL356/ADXL357 in standby mode: 21 μA 

ADXL356 has user adjustable analog output bandwidth 

ADXL357 digital output features 

Digital SPI and limited I

2C interfaces supported 

20-bit ADC 

Data interpolation routine for synchronous sampling 

Programmable high- and low-pass digital filters 

Integrated temperature sensor 

Voltage range options 

VSUPPLY with internal regulators: 2.25 V to 3.6 V 

V1P8ANA, V1P8DIG with internal LDO regulator bypassed: 1.8 V 

typical ± 10% 

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

14-terminal, 6 mm × 5.6 mm × 2.2 mm, LCC package 

APPLICATIONS： 

Inertial measurement units (IMUs)/attitude and heading 

reference systems (AHRSs) 

Platform stabilization systems 

Structural health monitoring 

Seismic imaging 

Tilt sensing 

Robotics 

Condition monitoring