●The LPS225HB is an ultra-compact piezoresistive absolute pressure sensor. It includes a monolithic sensing element and an IC interface which communicates a digital signal from the sensing element to the application.
●The sensing element, which detects absolute pressure, consists of a suspended membrane inside a single mono-silicon substrate and is manufactured using a dedicated process developed by ST.
●The membrane is very small compared to the traditionally built silicon micromachined membranes. Membrane breakage is prevented by an intrinsic mechanical stopper.
●The IC interface is manufactured using a standard CMOS process that allows a high level of integration to design a dedicated circuit which is trimmed to better match the characteristics of the sensing element.
●The LPS225HB is available in a full-mold, holed LGA package (HLGA). It is guaranteed to operate over a temperature range extending from -40 °C to +85 °C. The package is holed to allow external pressure to reach the sensing element.
●Key Features
● 26 to 126 kPa absolute pressure range
● High-resolution mode: 1 Pa RMS
● Low-power mode: 3.5 Pa RMS
● Current consumption down to 4 μA
● High overpressure capability: 20x full scale
● Embedded temperature compensation
● Embedded 24-bit ADC
● ODR from 1 Hz to 75 Hz
● SPI and I²C interfaces
● Embedded FIFO
● Interrupt functions: Data Ready, FIFO flags, pressure thresholds
● Supply voltage: 1.7 to 3.6 V
● Small and thin package
● ECOPACK® lead-free compliant
