Title :
Design formulas for biquad active filters using three operational amplifiers
Author :
Fleischer, P.E. ; Tow, J.
Author_Institution :
Bell Laboratories, Holmdel, NJ
fDate :
5/1/1973 12:00:00 AM
Abstract :
A circuit configuration and its design formulas are presented for the realization of all the useful forms of a biquadratic voltage transfer function. The circuit employs three single-ended operational amplifiers, two capacitors, and at most eight resistors. With an additional resistor, it can realize any biquadratic voltage transfer function.
Keywords :
Active filters; Capacitors; Circuits; Filtering theory; Frequency; Operational amplifiers; Poles and zeros; Resistors; Transfer functions; Voltage;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1973.9124
