Design of a CMOS Compatible CFOA and its Application in Analog Filtering

Author

Pena-Pérez, A. ; Tlelo-Cuautle, E. ; Díaz-Méndez, A. ; Sánchez-López, C.

Author_Institution

Dept. of Electron., INAOE

Volume

1

fYear

2006

fDate

Sept. 2006

Firstpage

235

Lastpage

238

Abstract

This paper presents the design of a current-feedback operational amplifier (CFOA) which is suitable for implementation with standard CMOS integrated-circuit technology of 0.35 mum. The characteristics of the CFOA are derived by using biases of plusmn2.5 V and Ibias=20 muA. The usefulness of the CFOA is demonstrated by designing mixed-mode biquads which realize the low-pass, high-pass, band-pass, notch and all-pass filter functions. As a result, it is highlighted that the SPICE simulations of the biquad working in voltage-mode are in good agreement with the biquad working in current-mode

Keywords

CMOS integrated circuits; SPICE; all-pass filters; band-pass filters; biquadratic filters; feedback amplifiers; high-pass filters; integrated circuit design; low-pass filters; matrix algebra; notch filters; operational amplifiers; CMOS integrated-circuit; SPICE simulation; all-pass filter; analog filtering; band-pass filter; current-feedback operational amplifier design; high-pass filter; low-pass filter; matrix algebra; mixed-mode biquad; notch filter; Band pass filters; CMOS technology; Chaos; Circuits; Filtering; Impedance; Operational amplifiers; SPICE; Transfer functions; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Robotics and Automotive Mechanics Conference, 2006

Conference_Location

Cuernavaca

Print_ISBN

0-7695-2569-5

Type

conf

DOI

10.1109/CERMA.2006.35

Filename

4019743