BMP085 Bosch Sensortec, BMP085 Datasheet - Page 2

• Manufacturer Part Number: BMP085
• Description: DIGITAL BAROMETRIC PRESSURE SNSR
• Manufacturer: Bosch Sensortec

Specifications of BMP085

• Pressure Type: Absolute
• Operating Pressure: 4.35 ~ 15.95 PSI, 300 ~ 1100 hPa
• Port Size: Female, 0.591" (1.5mm) Flush
• Output: Digital
• Voltage - Supply: 1.62 V ~ 3.6 V
• Termination Style: Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-CLCC
• For Use With: 828-1012 - BMP085 DAUGHTERCARD FOR DEV KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 828-1005-2

Package dimensions in mm
Specification subject to change without notice
© Bosch Sensortec GmbH reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on
2
Pin configuration (top view, pads shown transparently)
to third parties. BOSCH and the symbols are registered trademarks of Robert Bosch GmbH, Germany.
Pin
1
2
3
4
5
6
7
8
Bosch Sensortec
0.13±0.10
(8x)
Name
GND
EOC
V
V
NC
SCL
SDA
XCLR
DDA
DDD
1
2
3
1.07±0.10
(7x)
Function
Ground
End of conversion output
Power supply analog
Power supply digital
Not connected
I
I
Master clear input
2
2
C serial bus clock input
C serial bus data
5.00±0.25
(R.10)
(8)
BMP085
4
(RO.15)
(4x)
7
6
5
is a subsidiary of Bosch that focuses on micromecha-
nical components for the non-automotive markets.
Please contact us for further details. We are happy
to provide you with more information.
Sensor operation
The BMP085 comes as fully calibrated, ready-to-
use sensor module without the need for additional
external circuitry. Pressure and temperature data
are provided as 16 bit values via the I
together with calibration data for temperature
compensation.
The below figure describes the so-called barometric
formula by means of which the absolute altitude can be
calculated from the measured barometric pressure.
Bosch is the world market leader in MEMS sensors.
The BMP085 offers this high experience and relia-
bility for consumer applications. Bosch Sensortec
-1000
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
Barome ric pressure [hPa]
Headquarters
Bosch Sensortec GmbH
Gerhard-Kindler-Strasse 8
72770 Reutlingen · Germany
Telephone [phone]
Fax [phone]
[e-mail]
www.bosch-sensortec.com
t
2
Version_0.2_022008
C interface,
Altitude
in standard
atmosphere