ILPS22QSTR Dual full-scale, 1260 hPa and 4060 hPa, absolute digital output barometer with embedded Qvar electrostatic sensor

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

The device 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.