Data sheet
BMP180
Page 4
BST-BMP180-DS000-07 | Revision 2.3 | May 2011 Bosch Sensortec
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third
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. I
2
C INTERFACE ............................................................................................................................ 19
5.1 I
2
C SPECIFICATION ..................................................................................................................... 19
5.2 DEVICE AND REGISTER ADDRESS ................................................................................................ 20
5.3 I
2
C PROTOCOL ........................................................................................................................... 20
5.4 START TEMPERATURE AND PRESSURE MEASUREMENT................................................................. 21
5.5 READ A/D CONVERSION RESULT OR E
2
PROM 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