Current Mode Sigma-Delta Modulators Designed for Amperometry Based Medical Sensors

Pawel Sniatala, Marek Kropidlowski, Szymon Szczesny, João Goes, Nuno Paulino, João Pedro Oliveira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Bio-sensors are important parts of systems monitoring biological processes. Some of the techniques, applied in this type of sensors convert a physical/chemical phenomenon into an electrical current. Important part of such measurement devices is a ADC. The paper reported several structures of current mode Sigma-Delta modulators with ultra-low power consumption and other parameters suitable for this class of systems. An integrator based on a current mirror structure is used as a noise shaping filter. The presented design approach uses the VHDL-AMS models. A final, transistor level structure is also reported.

Original languageEnglish
Title of host publication2018 International Conference on Signals and Electronic Systems, ICSES 2018 - Proceedings
EditorsJacek Stepien, Witold Machowski
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages47-52
Number of pages6
ISBN (Electronic)9781538667682
DOIs
Publication statusPublished - 24 Oct 2018
Event10th International Conference on Signals and Electronic Systems, ICSES 2018 - Krakow, Poland
Duration: 10 Sep 201812 Sep 2018

Conference

Conference10th International Conference on Signals and Electronic Systems, ICSES 2018
CountryPoland
CityKrakow
Period10/09/1812/09/18

Keywords

  • Current mode ADC
  • Sigma-Delta modulators
  • VHDL-AMS models

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