BMP180 datasheet(4/29 Pages) BOSCH

4 / 29 page

Data sheet

BMP180

Page 4

BST-BMP180-DS000-12 | Revision 2.8 | May 2015

Bosch Sensortec

parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.

Note: Specifications within this document are subject to change without notice.

Index of Contents

1. ELECTRICAL CHARACTERISTICS.................................................................................................6

2. ABSOLUTE MAXIMUM RATINGS....................................................................................................8

3. OPERATION ......................................................................................................................................9

3.1 GENERAL DESCRIPTION ..............................................................................................................9

3.2 GENERAL FUNCTION AND APPLICATION SCHEMATICS.....................................................................9

3.3 MEASUREMENT OF PRESSURE AND TEMPERATURE .....................................................................11

3.3.1 Hardware pressure sampling accuracy modes ................................................................ 12

3.3.2 Software pressure sampling accuracy modes.................................................................. 13

3.4 CALIBRATION COEFFICIENTS......................................................................................................13

3.5 CALCULATING PRESSURE AND TEMPERATURE ............................................................................14

3.6 CALCULATING ABSOLUTE ALTITUDE............................................................................................16

3.7 CALCULATING PRESSURE AT SEA LEVEL .....................................................................................17

4. GLOBAL MEMORY MAP ................................................................................................................18

5. I2C INTERFACE ...............................................................................................................................19

5.1 I2C SPECIFICATION....................................................................................................................19

5.2 DEVICE AND REGISTER ADDRESS...............................................................................................20

5.3 I2C PROTOCOL .........................................................................................................................20

5.4 START TEMPERATURE AND PRESSURE MEASUREMENT................................................................21

5.5 READ A/D CONVERSION RESULT OR E2PROM DATA ...................................................................22

6. PACKAGE........................................................................................................................................23

6.1 PIN CONFIGURATION .................................................................................................................23

6.2 OUTLINE DIMENSIONS ...............................................................................................................24

6.2.1 Bottom view ..................................................................................................................... 24

6.2.2 Top view .......................................................................................................................... 25

6.2.3 Side view ......................................................................................................................... 25

6.3 MOISTURE SENSITIVITY LEVEL AND SOLDERING...........................................................................26

6.4 ROHS COMPLIANCY..................................................................................................................26

6.5 MOUNTING AND ASSEMBLY RECOMMENDATIONS .........................................................................26

7. LEGAL DISCLAIMER......................................................................................................................27

BMP180 Datasheet(PDF) 4 Page - Bosch Sensortec GmbH