STMicroelectronics ILPS22QS & ILPS28QSW

ILPS22QS and ILPS28QSW are ultracompact, piezoresistive, absolute pressure sensors that function as a digital output barometer, supporting dual full-scale up to user-selectable 4060 hPa.

These devices comprise a sensing element and an IC interface that communicates over the I²C, MIPI I3CSM (or SPI for the ILPS22QS) interfaces from the sensing element to the application.

They deliver ultra-low pressure noise with very low power consumption and operate over an extended temperature range from -40 °C to +105 °C.

Key features

• Low Current consumption
• Pressure accuracy
• Low pressure sensor noise
• Extended temperature range from -40 °C to +105 °C.

Additional features

• Selectable dual full-scale absolute pressure sensor (in a water-resistant package for ILPS28QSW)
  • Mode 1: 260 ~ 1260 hPa
  • Mode 2: 260 ~ 4060 hPa
     
• Embedded analog hub for processing analog input data
• Embedded Qvar for detecting electric charge variation
• Interrupt functions: data-ready, FIFO flags, pressure thresholds (for ILPS22QS)
• Current consumption down to 1.8 µA (for ILPS22QS) and 1.7 μA (for ILPS28QSW)
• Absolute pressure accuracy: 0.5 hPa
• Low pressure sensor noise: 0.34 Pa (for ILPS22QS) and 0.32 Pa (for ILPS28QSW)
• High-performance TCO: 0.45 Pa/°C (for ILPS22QS)
• Embedded temperature compensation
• Extended temperature range from -40 to +105 °C
• 24-bit pressure data output
• ODR from 1 Hz to 200 Hz
• SPI (for ILPS22QS), I²C or MIPI I3CSM interfaces
• Supports 1.08 V digital interface (for ILPS22QS)
• Embedded FIFO
• Supply voltage: 1.7 to 3.6 V
• High shock survivability:22,000g (for ILPS22QS)
• Easily sealed package with O-ring (for ILPS28QSW)
• ECOPACK lead-free compliant

Applications

• Industrial applications
• Gas and water metering
• Weather station equipment
• Altimeters and barometers for outdoor devices
• Smart filters
• Ventilators and CPAP equipmen
• Man-down detection

Available tools

 

STEVAL-MKI228KA:

Pressure sensor kit with Qvar functionality based on ILPS22QS

The STEVAL-MKI228KA evaluation kit consists of the STEVAL-MKI228A and the STREVAL-MKE001A. The STEVAL-MKI228A mounts the ILPS22QS pressure sensor with the Qvar electrostatic sensor and swipe electrode to make it compatible with the STEVAL-MKI109V3. The ILPS22QS is soldered exactly at the board center.

DATASHEET

 

STEVAL-MKI223V1K:

Pressure sensor kit with QVAR functionality based on ILPS28QSW

The STEVAL-MKI223V1K demonstration board is a kit made up of an ad hoc PCB, mounting the ILPS28QSW pressure sensor with a Qvar electrostatic sensor and a swipe electrode to make it compatible with the STEVAL-MKI109V3.

The electrode boards (STEVAL-MKE001A, STEVAL-MKE002A, or STEVAL-MKE003A) can be stacked on a STEVAL-MKI223V1 board. The kit provides the complete ILPS28QSW pinout and comes ready-to-use with the required decoupling capacitors on the V_DD power supply line.

DATASHEET

Videos