User Manual

Data sheet
BMP085
Page 10
BST-BMP085-DS000-06 | Revision 1.3 | August 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.
Typ
ical application circuit:
1.8 ...
3
.6V
Note:
(1) Pull-up resistors for I
2
C bus, R
p
= 2.2kΩ ... 10kΩ, typ. 4.7kΩ
Sensor
element
E
2
PROM
ADC
Control
Unit
BMP085
SCL
SDA
GND
VDDD
Rp
(1)
Rp
(1)
XCLR
Display
100nF
VDDA
EOC
μController
e. g. 8
bit
I
2
C interface
Note:
The BMP085 can be supplied independently with different levels of V
DDA
and V
DDD
, which is not
possible with the SMD500. In case of different voltage levels, V
DDA
and V
DDD
shall have a 100nF
decoupling capacitor each.