Publication detail

Bandpass Sigma-Delta Modulator for Capacitive Pressure Sensor

HÁZE, J. VRBA, R. FUJCIK, L. PAVLÍK, M. FOREJTEK, J. ZAVORAL, P. MICHAELI, L.

Original Title

Bandpass Sigma-Delta Modulator for Capacitive Pressure Sensor

Type

conference paper

Language

English

Original Abstract

The paper deals with bandpass sigma-delta modulator (BP SDM), which is used for conversion of signal from capacitive pressure sensor. This approach is absolutely new and unique, because this kind of modulators is utilized only for wireless and video applications. The main advantage of BP SDM is due to its defined band. That is why it is resistant against offsets of its subcuircits. Another important advantage is low power consumption, since the BP SDM digitizes only narrow band instead of whole Nyquist band with similar dynamic range. The paper shows basic ideas of this approach and simulation results with ideal and real modulator. The main stages are implemented in switched-capacitor (SC) technique. The modulator layout is presented as well.

Keywords

Sigma-delta modulator, bandpass, pressure sensor

Authors

HÁZE, J.; VRBA, R.; FUJCIK, L.; PAVLÍK, M.; FOREJTEK, J.; ZAVORAL, P.; MICHAELI, L.

RIV year

2006

Released

1. 1. 2006

Publisher

IMAPS

Location

Brno

ISBN

80-214-3246-2

Book

Proceedings of IMAPS Electronic Devices and System Conference, 2006, partII

Edition number

1

Pages from

514

Pages to

519

Pages count

6

BibTex

@inproceedings{BUT22111,
  author="Jiří {Háze} and Radimír {Vrba} and Lukáš {Fujcik} and Michal {Pavlík} and Jiří {Forejtek} and Pavel {Zavoral} and Linus {Michaeli}",
  title="Bandpass Sigma-Delta Modulator for Capacitive Pressure Sensor",
  booktitle="Proceedings of IMAPS Electronic Devices and System Conference, 2006, partII",
  year="2006",
  number="1",
  pages="6",
  publisher="IMAPS",
  address="Brno",
  isbn="80-214-3246-2"
}