Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Design of D/A Converter based on Data Weighted Average Technique for enhancement of reliability

혼합형 전류 구동 D/A 컨버터 설계 제작에 있어서 데이터 가중평균기법을

  • Kim, S.D. (Department of electrical engineering Korea Univ) ;
  • Woo, Y.S. (Department of electrical engineering Korea Univ) ;
  • Kim, D.G. (Department of electrical engineering Korea Univ) ;
  • Sung, M.Y. (Department of electrical engineering Korea Univ)
  • 김순도 (고려대학교 전기공학과) ;
  • 우영신 (고려대학교 전기공학과) ;
  • 김두곤 (고려대학교 전기공학과) ;
  • 성만영 (고려대학교 전기공학과)
  • Published : 1999.07.19
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Abstract

In this paper, a new structure of realizing switching control logic for Data Weighted Average Technique is suggested. It uses memory and adder for summing past binary input and this summed data is used to select one switch in control logic. This control logic acts in parallel regardless of resolution so increasing resolution don't affect on converting speed. In this reason, high speed and high resolution D/A converter based on Data Weighted Average Technique could be made. In this paper, 4 bits current mode thermometer code D/A converter is degined and simulated by using HSPICE. Simulated results show that new structure of D/A converter has more than 250MHz converting speed and less than 0.0003[LSB] INL error. It is very useful in low power circuit because of using 3.3 V supply voltage.

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