Comparison between Miller integrator cells using VOAs and CFOAs

Author

Mita, R. ; Palumbo, G. ; Pennisi, S.

Author_Institution

Dipt. Elettrico Elettronico e Sistemistico, Catania Univ., Italy

Volume

1

fYear

2002

fDate

2002

Firstpage

181

Abstract

The current feedback opamp (CFOA) emerged as a high-speed alternative to the conventional voltage operational amplifier (VOA) and since its introduction a wide spectrum of applications have been proposed, also in the filters area. However, no effort has been aimed to demonstrate under what conditions improvements are achievable and to outline eventual limitations. At this purpose, the paper presents an accurate performance comparison of Miller integrator cells based on CFOAs and VOAs. Basic inverting and noninverting integrator structures are analyzed and simulations performed with transistor-level circuits are also given.

Keywords

active filters; feedback amplifiers; integrating circuits; operational amplifiers; CFOAs; Miller integrator cells; VOAs; active filters; current feedback opamp; inverting integrator structures; noninverting integrator structures; transistor-level circuits; voltage operational amplifier; Analytical models; Bandwidth; Circuit simulation; Energy consumption; Feedback; Filters; Frequency; Operational amplifiers; Performance analysis; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2002. 9th International Conference on

Print_ISBN

0-7803-7596-3

Type

conf

DOI

10.1109/ICECS.2002.1045363

Filename

1045363