Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

2-5V, 2-4mW, the third-order Elliptic Low-pass Gm-C Finer

2-5V, 2-4mW, 3차 타원 저역통과 Gm-C 필터

  • 윤창훈 (우석대학교 정보통신컴퓨터공학부) ;
  • 김종민 (전북대학교 전자정보공학부) ;
  • 유영규 (전북대학교 전자정보공학부) ;
  • 최석우 (전북대학교 전기전자회로합성연구소) ;
  • 안정철 (한국전자통신연구원)
  • Published : 2000.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a Gm-C filter for low voltage and low power applications using a fully-differential transconductor is presented. The designed transconductor using the series composite transistors and the low voltage composite transistors has wide input range at low supply voltage. A negative resistor load (NRL) technology for high DC gain of the transconductor is employed with a common mode feedback (CMFB). As a design example, the third-order Elliptic lowpass filter is designed. The designed filter is simulated and examined by HSPICE using 0.25${\mu}{\textrm}{m}$ CMOS n-well parameters. The simulation results show 105MHz cutoff frequency and 2.4㎽ power dissipation with a 2.5V supply voltage.

Keywords