An analog on-chip adaptive body bias calibration for reducing mismatches in transistor pairs

  • Authors:
  • P. B. Bacinschi;T. Murgan;K. Koch;M. Glesner

  • Affiliations:
  • Technische Univ. Darmstadt, Darmstadt, Germany;Technische Univ. Darmstadt, Darmstadt, Germany;Infineon Technologies, Am Campeon, Neubiberg, Germany;Technische Univ. Darmstadt, Darmstadt, Germany

  • Venue:
  • Proceedings of the conference on Design, automation and test in Europe
  • Year:
  • 2008

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Abstract

Device parameter variations exhibit an increasingly serious impact on analog and mixed-signal circuit behavior. In this paper, we propose a novel fully-analog on-chip adaptive body bias calibration method, for efficiently reducing mismatches in transistor pairs. We present three circuit implementations which achieve a mismatch reduction between 61% and 73% in terms of standard deviation.