A Design of 20 MHz CMOS Continuous Time Low-Pass Filter Using Linear Transconductors

선형 트랜스컨덕터를 이용한 20 MHz CMOS 연속시간 저역-통과 여파기의 설계

  • 박희종 (청주대학교 전자공학과) ;
  • 박상렬 (청주대학교 전자공학과) ;
  • 김동용 (청주대학교 전자공학과) ;
  • 차형우 (청주대학교 전자ㆍ정보통신ㆍ반도체 공학부) ;
  • 정원섭 (청주대학교 전자공학과)
  • Published : 1999.06.01

Abstract

A 20 MHz CMOS continuous low-pass filter using simulated floating inductor consisted of two fully-differential transconductors and a capacitor is presented. The theory of operation is described and simulation results show close agreement between predicted behaviour and experimential performance. Simulation results show that the filter has ripple bandwidth of 22 MHz, pass-band ripple of 0.36 ㏈. and cutoff frequency of 26 MHz at supplay voltage of $\pm$3 V. The power dissipation is 19.2 ㎽.

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