SENSORS

PRESSURELPS331AP MEMSBarometric Pressure SensorPRESSUREProduct OverviewThe new LPS331AP MEMS pressure sensor provides highresolutionmeasurements of pressure in an ultra-compactpackage. The device is created in ST’s state of the artVENSENS process using a mono-silicon membrane abovean air cavity with controlled gap and defined pressure. Theresult is a device with very low power consumption, greatnoise immunity, and intrinsic robustness to overpressureconditions.Features & Benefits260 to 1260 mbar absolute pressure rangeDigital output I 2 C or SPI interfaceHigh resolution modeEmbedded temperature compensationEmbedded 24-bit ADCSelectable ODR from 1Hz to 25HzRobust 10k g shock survivabilityHigh 20x overpressure capabilityFast report, one shot, and dual interrupt modes of operationLow power consumptionOperating Voltage Range: 1.71 to 3.6VSmall and thin Ecopack ® packageApplicationsAn absolute pressure sensor measures pressure relative toa sealed chamber inside the sensing element. In additionto thermostatic controls, LPS331 is particularly suited forapplications such as smartphones, tablet PCs, and handheldGPS.Indoor and outdoor navigationEnhanced GPS for dead-reckoningAltimeter and barometer for portable devicesWeather station equipmentPortable devicesEvaluation KitST pressure sensors are supported by the MEMS evaluationkit which consists of the STEVAL-MKI109V2 board with aGUI. A separate plug-in module contains the LPS331APchip. The board connects to a host PC via USB and allowsfull access to the chip capabilities via the easy to usesoftware.84LPS331APEvaluationPlug-in ModuleSTEVAL-MKI109V2 e-Motion Motherboardwww.FutureElectronics.com/Sensors