'Barometer' related articles 1

  1. 2009/12/04 MPL115A1 - Miniature SPI Digital Barometer
Description
The MPL115A1 is an absolute pressure sensor with digital output for low cost applications. A miniature 5 x 3 x 1.2 mm LGA package ideally suits it for portable electronics and space constrained applications. Low current consumptions of 5 μA during Active mode and 1 μA during Shutdown (Sleep) mode target battery and other low-power applications. A wide operating temperature range from -40°C to +105°C fits demanding environmental requirements.
MPL115A1 employs a MEMS pressure sensor with a conditioning IC to provide accurate pressure measurement from 50 to 115 kPa. An integrated ADC provides digitized temperature and pressure sensor outputs via a SPI port. Calibration Data is stored in internal ROM. Utilizing raw sensor output, the host microcontroller executes a compensation algorithm to render Compensated Absolute Pressure with 1 kPa accuracy.
The MPL115A1 pressure sensor’s small form factor, low power capability, precision, and digital output optimize it for barometric measurement applications.

Features
*Digitized pressure and temperature information together with programmed calibration coefficients for host micro use.
*Factory Calibrated
*50 kPa to 115 kPa Absolute Pressure
*1 kPa Accuracy
*2.375 V to 5.5 V Supply
*Integrated ADC
*SPI Interface
*Monotonic Pressure and Temperature Data Outputs
*Surface Mount RoHS Compliant Package

Application Examples
*Barometry (portable and desk-top)
*Altimeters
*Weather Stations
*Hard Disk-Drives (HDD)
*Industrial Equipment
*Health Monitoring
*Air Control Systems

MPL115A1T1

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