The sensing element consists of a suspended membrane realized inside a single mono-silicon substrate. It is capable of detecting pressure and is manufactured using a dedicated process developed by ST, called VENSENS.
The VENSENS process allows the building of a mono-silicon membrane above an air cavity with controlled gap and defined pressure. The membrane is very small compared to the traditionally built silicon micromachined membranes. Membrane breakage is prevented by intrinsic mechanical stoppers.
The IC interface is manufactured using a standard CMOS process that allows a high level of integration to design a dedicated circuit which is trimmed to better match the sensing element characteristics.
The LPS001WP is available in a small plastic land grid array (HCLGA) package and is guaranteed to operate over a temperature range extending from -40 °C to +85 °C. The package is holed to allow external pressure to reach the sensing element.
The LPS001WP belongs to a family of products suitable for a variety of applications.
- Piezoresistive pressure sensor
- 300-1100 mbar absolute pressure range
- 0.065 mbar resolution
- Embedded offset and span temperature compensation
- Embedded 16-bit ADC
- SPI and I2C interfaces
- Supply voltage 2.2 V to 3.6 V
- High shock survivability (10000 g)
- Small and thin package
- ECOPACK® lead-free compliant
Applications
■ Altimeter and barometer for portable devices
■ Smartphones
■ Indoor navigation
■ GPS applications
■ Weather station equipment
■ Sports watches
Device Summary
| Order code | Operating temperature range [°C] | Package | Packing |
| LPS001WP | -40 to +85 | HCLGA-8L | Tray |
| LPS001WPTR | -40 to +85 | HCLGA-8L | Tape and reel |
DATASHEET
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