Design methods and algorithms for configurable capacitive sensor interfaces

W. Bracke, P. Merken, R. Puers, C. Van Hoof

Research output: Contribution to journalArticlepeer-review

Abstract

Generic sensor interface design reduces the design costs and offers a handy solution for multisensor applications. However, the main disadvantages of generic readout circuits are loss of performance and increased power consumption. The ability to program the front-end would have an important impact on the accuracy of the sensor readout. This paper studies the effect of programmability on an ultra low power generic capacitive sensor interface. It also provides an algorithm, which calculates the optimal configuration settings for each application.

Original languageEnglish
Pages (from-to)25-33
Number of pages9
JournalSensors and Actuators, A: Physical
Volume125
Issue number1
DOIs
Publication statusPublished - 21 Oct 2005

Keywords

  • Capacitive sensors
  • Generic sensor interface
  • Optimal configuration

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