A Design of CMOS VCO Using Bandgap Voltage Reference

밴드갭 기준 전압을 이용한 CMOS 전압 제어 발진기의 설계

  • 최진호 (부산외국어대학교 컴퓨터ㆍ전자공학부)
  • Published : 2003.10.01


A CMOS Voltage-Controlled Oscillator(VCO) for application at temperature stable system is designed. The VCO consists of bandgap voltage reference circuit, comparator, and voltage-to-current converter and the VCO has a temperature stable characteristics. The difference between simulated and calculated values is less than about 5% in output characteristics when the input voltage range is from 1V to 3.25V. The CMOS VCO has error less than about $\pm$0.85% in the temperature range from $-25^{\circ}C$ to $75^{\circ}C$.




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