STMicroelectronicsILPS22QSTR | Board Mount Pressure SensorsDrucksensor für die Leiterplattenmontage

Dual full-scale, 1260 hPa and 4060 hPa, absolute digital output barometer with embedded Qvar electrostatic sensor

The ILPS22QS is an ultra-compact piezoresistive absolute pressure sensor which functions as a digital output barometer, supporting dual full-scale up to user-selectable 4060 hPa. The device delivers ultra-low pressure noise with very low power consumption and operates over an extended temperature range from -40 °C to +105 °C.

The ILPS22QS comprises a sensing element and an IC interface which communicates over I²C, MIPI I3CSM or SPI interfaces from the sensing element to the application and supports 1.2 V digital interface as well. The sensing element, which detects absolute pressure, consists of a suspended membrane manufactured using a dedicated process developed by ST.

The ILPS22QS embeds an analog hub sensing functionality which is able to connect an analog input and convert it to a digital signal for embedded processing. In addition, an embedded Qvar (electric charge variation detection) channel can be enabled for sensing in applications such as water leakage detection, tap, double tap, long press, and L/R - R/L swipe.

The ILPS22QS is available in a full-mold, holed LGA package (HLGA). The package is holed to allow external pressure to reach the sensing element.

Features and Benefits:

• Dual full-scale absolute pressure selectable up to 1260 hPa or 4060 hPa
• Wide operating temperature -40°C to 105°C
• High accuracy and resolution
• Embedded temperature compensation
• Low power consumption and low noise
• Qvar electrostatic sensor embedded - charge variation sensing
• Supports 8 different ODR from 1 Hz to 200 Hz
• Unique full-molded package with small vent holes and suspended membrane

Applications and Use Cases:

• Activity recognition
  • Vertical context detection
  • Stair count / Man Fall down
  • Pose & fitness monitoring
• Vertical detection
  • Altitude monitoring
  • 911 indoor vertical position
  • Ambient pressure monitor
• Flow detection
  • Puff detection
  • Air flow metering
• Airplane mode detection
  • Recognize take-off and
  • landing to set the radio / GPS signal
• Water depth monitoring
  • Water depth
  • Monitoring