Features

• Selectable dual full-scale absolute pressure range

– Mode 1: 260 ~ 1260 hPa

– Mode 2: 260 ~ 4060 hPa

• Current consumption down to 1.8 μA

• Absolute pressure accuracy: 0.5 hPa

• Low pressure sensor noise: 0.34 Pa

• High-performance TCO: 0.45 Pa/°C

• Embedded temperature compensation

• Extended temperature range from -40 to +105 °C

• 24-bit pressure data output

• ODR from 1 Hz to 200 Hz

• SPI, I²C or MIPI I3CSM interfaces

• Supports 1.08 V digital interface

• Embedded FIFO

• Embedded analog hub for processing analog input data

• Embedded Qvar for detecting electric charge variation

• Interrupt functions: data-ready, FIFO flags, pressure thresholds

• Supply voltage: 1.7 to 3.6 V

• High shock survivability: 22,000 g

• Small and thin package

• ECOPACK lead-free compliant

Description

The ILPS22QS is an ultra-compact piezoresistive absolute pressure sensor which

functions as a digital output barometer, supporting dual full-scale up to userselectable

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.

Applications

• Industrial applications

• Gas and water metering

• Weather station equipment

• Altimeters and barometers for outdoor devices

• Smart filters

• Ventilators and CPAP equipment

• Man-down detection