A bulk-driven ISFET-based chemical mixer

W. S. Wan Zain, T. Prodromakis, C. Toumazou

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

Abstract / Description of output

In this work the concept of the chemical mixer for comparing the pH of two aqueous solutions is introduced. Ionic concentrations are sensed via a pair of ISFETs, which are then translated into signals with frequencies that correspond to the pH values of the solutions. Using the bulk-driven single balanced topology, the number of transistors is significantly reduced, making it suitable for applications where a low supply voltage and low power consumption are essential. Finally, it is demonstrated that the output frequency of the mixer depends on the • pH of the solutions under test.

Original languageEnglish
Title of host publication2010 IEEE Biomedical Circuits and Systems Conference, BioCAS 2010
Pages134-137
Number of pages4
DOIs
Publication statusPublished - 4 Feb 2011
Event2010 IEEE Biomedical Circuits and Systems Conference, BioCAS 2010 - Paphos, Cyprus
Duration: 3 Nov 20105 Nov 2010

Publication series

Name2010 IEEE Biomedical Circuits and Systems Conference, BioCAS 2010

Conference

Conference2010 IEEE Biomedical Circuits and Systems Conference, BioCAS 2010
Country/TerritoryCyprus
CityPaphos
Period3/11/105/11/10

Keywords / Materials (for Non-textual outputs)

  • Bulk-driven mixer
  • Chemical mixer
  • Chemical sensor
  • CMOS
  • ISFET

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