MPL115A2 - Freescale - #1

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MPL115A2 Rev 7, 08/2010 Freescale Semiconductor © Freescale Semiconductor, Inc., 2010. All rights reserved. Pressure Miniature I2C Digital Barometer The MPL115A2 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 ìA during Active mode and 1 ìA 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. MPL115A2 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 an I2C 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 MPL115A2 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 • I2C Interface • Monotonic Pressure and Temperature Data Outputs • Surface Mount RoHS Compliant Package ORDERING INFORMATION Device Name Package Options Case No. # of Ports Pressure Type Digital None Single Dual Gauge Differential Absolute Interface MPL115A2 Tray 2015 • • I2C MPL115A2T1 Tape & Reel (1000) 2015 • • I2C MPL115A2T2 Tape & Reel (5000) 2015 • • I2C Pin Description PIN NAME FUNCTION 1 VDD VDD Power Supply Connection. 2 CAP External Capacitor 3 GND Ground 4 SHDN Shutdown (Sleep): Connect to GND to disable the device. 5 RST Reset: Drive line low to disable I2C communications. 6 NC NC: No connection. 7 SDA(1) SDA: Serial data I/O line. 8 SCL(1) I2C Serial Clock Input. 1. Use 4.7k pull-up resistors for I2C communication. MPL115A2 50 to 115 kPa MPL115A2 5.0 mm X 3.0 mm X 1.2 mm MAX LGA PACKAGE 1 NC SDA VDD CAP SHDN GND RST SCL 2 3 4 8 7 6 5 PIN CONNECTIONS Application Examples • Barometry (portable and desk-top) • Altimeters • Weather Stations • Hard Disk-Drives (HDD) • Industrial Equipment • Health Monitoring • Air Control Systems