Specifications

BMA180
Preliminary data sheet
Bosch Sensortec
Rev. 1.0 Page 15 / - proprietary information - 06 March 2009
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as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Specifications within this document are preliminary and subject to change without notice. Document is not intended for publication.
3 Block diagram
Figure 1: Block diagram of BMA180
The Block diagram shows
- the micromechanical g-sensor elements (measurement of acceleration in x-, y- and z-
direction),
- the temperature sensor,
- the front-End-circuit including preamplifiers and analogue pre-filtering circuitry,
- a multiplexer,
- the 14bit ADC,
- the digital part of the circuitry (responsible for offset regulation, calibration, digital filtering,
power regulation)
- the interrupt generation and
- the interface circuitry (I²C and 4-wire SPI)
Other blocks like power-on reset, clock generator, internal band-gap, etc. are not shown.