Overview
The IIS3DWBTR, produced by STMicroelectronics, is a system-in-package featuring a 3-axis digital vibration sensor. It is designed to offer low noise over an ultra-wide and flat frequency range, making it particularly suitable for vibration monitoring in industrial applications. The sensor boasts high performance at low power consumption, with a digital output and embedded digital features such as a FIFO buffer and interrupts, which are ideal for battery-operated industrial wireless sensor nodes. The device operates over an extended temperature range from -40 °C to +105 °C and is available in a compact 14-lead plastic land grid array (LGA) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Full-scale acceleration range | ±2/±4/±8/±16 g | - |
| Frequency response range | dc to 6 kHz (±3 dB point) | - |
| Noise density | Down to 75 µg/√Hz (3-axis mode), 60 µg/√Hz (single-axis mode) | µg/√Hz |
| Output data rate | 26.7 kHz | kHz |
| FIFO buffer size | 3 kB | kB |
| Power consumption | 1.1 mA (all 3 axes delivering full performance) | mA |
| Supply voltage | 2.1 V to 3.6 V | V |
| Package type | LGA 14-lead, 2.5 x 3 x 0.83 mm | - |
| Operating temperature range | -40 °C to +105 °C | °C |
Key Features
- 3-axis vibration sensor with digital output
- User-selectable full-scale acceleration range: ±2/±4/±8/±16 g
- Ultra-wide and flat frequency response range: from dc to 6 kHz (±3 dB point)
- Ultra-low noise density: down to 75 µg/√Hz in 3-axis mode / 60 µg/√Hz in single-axis mode
- High stability of the sensitivity over temperature and against mechanical shocks
- Extended temperature range from -40 °C to +105 °C
- Low power consumption: 1.1 mA with all 3 axes delivering full performance
- SPI serial interface
- Low-pass or high-pass filter with selectable cut-off frequency
- Interrupts for wake-up / activity - inactivity / FIFO thresholds
- Embedded FIFO: 3 kB
- Embedded temperature sensor
- Embedded self-test capability
- ECOPACK, RoHS, and “Green” compliant
Applications
- Vibration monitoring
- Condition monitoring
- Predictive maintenance
- Test and measurements
Q & A
- What is the IIS3DWBTR used for?
The IIS3DWBTR is used for vibration monitoring, condition monitoring, predictive maintenance, and test and measurements in industrial applications.
- What is the full-scale acceleration range of the IIS3DWBTR?
The full-scale acceleration range is user-selectable: ±2/±4/±8/±16 g.
- What is the frequency response range of the IIS3DWBTR?
The frequency response range is from dc to 6 kHz (±3 dB point).
- How much power does the IIS3DWBTR consume?
The power consumption is 1.1 mA with all 3 axes delivering full performance.
- What is the operating temperature range of the IIS3DWBTR?
The operating temperature range is from -40 °C to +105 °C.
- Does the IIS3DWBTR have any embedded features?
Yes, it includes an embedded FIFO buffer, temperature sensor, and self-test capability.
- What type of interface does the IIS3DWBTR use?
The IIS3DWBTR uses an SPI serial interface.
- Is the IIS3DWBTR environmentally friendly?
Yes, it is ECOPACK, RoHS, and “Green” compliant.
- What is the package type of the IIS3DWBTR?
The package type is a 14-lead plastic land grid array (LGA) with dimensions 2.5 x 3 x 0.83 mm.
- Does the IIS3DWBTR have any noise reduction features?
Yes, it has ultra-low noise density down to 75 µg/√Hz in 3-axis mode and 60 µg/√Hz in single-axis mode.
