吉林大学学报(工学版) ›› 2013, Vol. 43 ›› Issue (增刊1): 402-405.

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Novel design of voltage-mode universal biquad CFOA filter

ZANG Mu-jun, WANG Chun-yue, FENG Jin   

  1. College of Communication Engineering, Jilin University, Changchun 130012, China
  • Received:2012-06-03 Published:2013-06-01

Abstract:

A new voltage-mode universal biquad filter circuit using current-feedback operational amplifiers (CFOA) was presented.The circuit consisted of four CFOA,two capacitors and ten resistors which achieved all the five filter functions,such as low-pass,band-pass,high-pass,notch,and all-pass from the same configuration.Circuit implementation was given and a computer simulation of the circuit was completed.PSPICE simulation results show that the design of circuit has the characteristics of simple structure and low sensitivity.All the capacitors are grounded and the filter is suitable for fully integration.

Key words: analog circuit design, current-feedback operational amplifiers (CFOA), voltage-mode, universal biquad filter

CLC Number: 

  • TN713

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