Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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On-Chip CMOS Oscillator using PVT Compensated Circuit

공정, 전압, 온도 보상 회로를 이용한 On-Chip CMOS Oscillator

  • Han, Do-Hee (Division of Electrical Engineering, College of Information Technology Ajou University) ;
  • Kwon, Ick-Jin (Division of Electrical Engineering, College of Information Technology Ajou University)
  • 한도희 (아주대학교 정보통신 대학 전자공학부) ;
  • 권익진 (아주대학교 정보통신 대학 전자공학부)
  • Published : 2008.06.18
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Abstract

In this article, process voltage temperature (PVT) compensated on-chip oscillator is implemented by using proportional to absolute temperature (PTAT) circuit and process compensator. Process compensator circuit based on current subtracter and PTAT circuit are proposed for compensation of oscillation frequency to cope with process variation and temperature variation. All circuit can operate in the range of $3.5{\sim}5\;V$ supply voltage. It can be applied to PVT insensitive low frequency clock reference generator.

Keywords