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STMicroelectronics introduces ultra-compact piezoresistive absolute pressure sensor

Mär 14 2023 2023-03 Semiconductors STMicroelectronics
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The stmicroelectronics ILPS28QSW is an ultra-compact piezoresistive absolute pressure sensor that functions as a digital output barometer with dual range support up to a user optional 4060 hPa. Ceramic LGA package with metal lid. It is guaranteed to operate in the temperature range from -40°C to +105°C. It also provides lower power consumption and achieves lower pressure noise than its predecessor.

The stmicroelectronics ILPS28QSW is an ultra-compact piezoresistive absolute pressure sensor that functions as a digital output barometer with dual range support up to a user optional 4060 hPa. The device includes a sensing element and an IC interface that communicates from the sensing element to the application through either an I²C or MIPI I³C® interface.

 

The ILPS28QSW comes in a ceramic LGA package with a metal lid. It is guaranteed to operate in the temperature range from -40°C to +105°C. The package has holes to allow external pressure to reach the sensing element. The gel inside the IC protects the electronic components from water, and the metal cap optionally connects to the ground or stays afloat in the application PCB layout. The connection of the metal cap is determined according to the target application of the customer.

 

It also provides lower power consumption and achieves lower pressure noise than its predecessor. The ILPS28QSW is embedded with analog hub sensing capabilities to connect analog inputs and convert them into digital signals for embedded processing. In addition, you can enable embedded Qvar(charge Change detection) channels for sensing in applications such as water leak detection, faucet, double tap, long press, and L/ R-R /L slide.

 

Features

● Dual full-scale absolute pressure sensor in a water-resistant package
-   Mode 1: 260 hPa ~ 1260 hPa
-   Mode 2: 260 hPa ~ 4060 hPa
● Embedded analog hub for processing analog input data
● Embedded Qvar for detecting electric charge variation
● Current consumption down to 1.7 μA
● Absolute pressure accuracy: 0.5 hPa
● Low pressure sensor noise: 0.32 Pa
● Embedded temperature compensation
● Extended temperature range from -40°C to +105°C
● 24-bit pressure data output
● ODR from 1 Hz to 200 Hz
● I²C or MIPI I³C interface
● Embedded FIFO
● Supply voltage: 1.7V to 3.6V
● Easily sealed package with O-ring
● ECOPACK lead-free compliant

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