Data sheet

BMP183

Page 13

BST-BMP183-DS000-00 | Revision 1.0 | June 2012

Bosch Sensortec

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

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

3.4.2 Software pressure sampling accuracy modes

For applications where a low noise level is critical, averaging is recommended if the lower bandwidth

is acceptable. Oversampling can be enabled using the software API driver (with OSR = 3).

Table 4: Overview of BMP183 software accuracy mode,

selected by driver software via the variable software_oversampling_setting

Mode

Parameter

oversampling_setting

software_

oversampl

ing_settin

g

Conversion

time

pressure

max. [ms]

Avg. current

@ 1

sample/s

typ. [µA]

RMS noise

typ. [hPa]

RMS noise

typ. [m]

Advanced

resolution

3

1

76.5

32

0.02

0.17

3.5 Calibration coefficients

coefficients. Every sensor module has individual coefficients. Before the first calculation of

The data communication can be checked by checking that none of the words has the value 0 or

0xFFFF.

Table 5: Calibration coefficients

BMP183 reg adr

Parameter

MSB

LSB

AC1

0xAA

0xAB

AC2

0xAC

0xAD

AC3

0xAE

0xAF

AC4

0xB0

0xB1

AC5

0xB2

0xB3

AC6

0xB4

0xB5

B1

0xB6

0xB7

B2

0xB8

0xB9

MB

0xBA

0xBB

MC

0xBC

0xBD

MD

0xBE

0xBF