Waterproof MEMS pressure sensor has 10-year life
STMicroelectronics has introduced a MEMS pressure sensor with a 10-year life.
The unit has dual full-scale measurement capabilities of 1260 hPa and 4060 hPa in a water-resistant package. The unit is described as being suitable for gas- and water-metering equipment, weather monitoring, air conditioning, and home appliances.
ST’s new ILPS28QSW sensor comes in a sealed, cylindrical, surface-mountable package. It features a ceramic substrate and a robust potting gel. The steel lid is sealed with an o-ring and secured with epoxy adhesive. This package design achieves an ingress-protection rating of IP58 and can withstand immersion in more than one meter of water, certified according to IEC 60529 and ISO 20653. In addition, the sensor can sustain up to 10Bar over-pressure.
The ILPS28QSW provides absolute pressure readings, accurate to within 0.5hPa, with selectable full-scale range of 260 to 1260hPa and 260 to 4060hPa, and has an operating temperature range of -40°C to 105°C.
The ILPS28QSW lets developers create additional value in their applications through features such as liquid leakage detection.
With an operating current as low as 1.7µA the unit includes temperature compensation, FIFO memory, and an I2C/MIPI-I3C digital communication interface with the output data rate selectable from 1Hz to 200Hz.
The ILPS28QSW is in production, priced from $3.00 for orders of 1000 pieces.
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