Digital vibration sensor captures signals across 6.3kHz bandwidth
The STMicroelectronics IIS3DWBG1 3-axis digital vibration sensor combines low noise, bandwidth to 6.3kHz and stable sensitivity over temperature, to build more accurate condition-monitoring and predictive-maintenance systems.
The IIS3DWBG1 from STMicroelectronics is a 3-axis digital vibration sensor designed for industrial equipment, electric and hybrid vehicles, and test systems that require consistent wideband vibration data. The flat passband response, bandwidth up to 6 kHz, and low noise enable the capture of both subtle and higher-frequency mechanical signatures with a single sensor. The sensor offers an ultrawide, flat frequency response from dc to 6kHz, with a ±3dB limit at the upper end.
Engineers can configure the IIS3DWBG1 for ±2g, ±4g, ±8g or ±16g full-scale operation. The sensor outputs 16-bit acceleration data at 26.667kHz, and the combination of stable sensitivity over temperature and operation up to 125°C makes the IIS3DWBG1 well suited to condition monitoring and predictive maintenance in demanding environments.
Integration overhead is kept low. The IIS3DWBG1 combines a serial peripheral interface (SPI) selectable low-pass and high-pass filtering, wake-up and activity-inactivity interrupts, a 3KB first-in, first-out buffer, an embedded temperature sensor, and embedded self-test. Power consumption is 1.1mA with all 3 axes active, making the IIS3DWBG1 a strong fit for compact industrial wireless sensor nodes.