Document Number: MPL115A2 Freescale Semiconductor Rev 8, 06/2012 Data Sheet: Technical Data 2 Miniature I C Digital Barometer MPL115A2 2 The MPL115A2 is an absolute pressure sensor with a digital I C output targeting 50 to 115 kPa low cost applications. A miniature 5 by 3 by 1.2 mm LGA package is ideally suited for the space constrained requirements of portable electronic devices. Low current consumptions of 5 A during Active mode and 1 A during Shutdown (Sleep) mode are essential when focusing on low-power applications. The wide operating temperature range spans from -40C to +105C to fit demanding environmental conditions. The MPL115A2 employs a MEMS pressure sensor with a conditioning IC to provide accurate pressure measurements from 50 to 115 kPa. An integrated ADC converts pressure and temperature sensor readings to digitized outputs via 2 a I C port. Factory calibration data is stored internally in an on-board ROM. Utilizing the raw sensor output and calibration data, the host microcontroller executes a compensation algorithm to render Compensated Absolute Pressure with 1 kPa accuracy. MPL115A2 The MPL115A2 pressure sensors small form factor, low power capability, 5.0 mm by 3.0 mm by 1.2 mm precision, and digital output optimize it for barometric measurement applications. Top View Features Digitized pressure and temperature information together with programmed 1 8 SCL VDD calibration coefficients for host micro use. SDA Factory Calibrated CAP 2 7 50 kPa to 115 kPa Absolute Pressure NC GND 3 6 1 kPa Accuracy 2.375V to 5.5V Supply 4 5 RST SHDN Integrated ADC 2 I C Interface (operates up to 400 kHz) 2 7 bit I C address = 0x60 Pin Connections Monotonic Pressure and Temperature Data Outputs Surface Mount RoHS Compliant Package Application Examples Barometry (portable and desktop) Altimeters Weather Stations Hard Disk-Drives (HDD) Industrial Equipment Health Monitoring Air Control Systems ORDERING INFORMATION of Ports Pressure Type Digital Device Name Package Options Case No. Interface None Single Dual Gauge Differential Absolute 2 MPL115A2 Tray 2015 I C 2 MPL115A2T1 Tape & Reel (1000) 2015 I C 2 MPL115A2T2 Tape & Reel (5000) 2015 I C 2009-2012 Freescale Semiconductor, Inc. All rights reserved.1 Block Diagram and Pin Descriptions 1 F VDD VDVDDD ADADADDDDRRR CAP 1 F ADADADDDDRRR CoeCoeffffiicicieentnt CAPCAP StoStorragagee ADADADDDDRRR DDiiffff AmAmp p SHDN SHSHDNDN ADADDDRR PrPreesssuresure ADADCC ADADDDRR TeTemmppereratatuurree TeTemmpp 4.7 k SensSensoorr SCL C SCSCLL Microcontroller 4.7 k 22 SDA II CC SDSDAA InInterterffaaccee RST RSRSTT GND GNDGND Figure 1. Block Diagram and Pin Connections Table 1. Pin Description Pin Name Function 1 VDD VDD Power Supply Connection: VDD range is 2.375V to 5.5V. 2 CAP 1 F connected to ground. 3 GND Ground Shutdown: Connect to GND to disable the device. When in shutdown, the part draws no more than 1 A supply 4 SHDN current and all communications pins (RST, SCL, SDA) are high impedance. Connect to VDD for normal operation. 2 5 RST Reset: Connect to ground to disable I C communications. 6 NC NC: No connection (1) 7 SDA SDA: Serial data I/O line (1) 2 8 SCL I C Serial Clock Input. 2 1. Use 4.7k pullup resistors for I C communication. MPL115A2 Sensors 2 Freescale Semiconductor, Inc. MUXMUX