Dynamic range, noise and linearity optimization of continuous-time OTA-C filters

Author

Koziel, S. ; Ramachandran, A. ; Szczepanski, S. ; Sanchez-Sinenco, E.

Author_Institution

Fac. of Electron., Tech. Univ. Gdansk, Poland

fYear

2004

fDate

13-15 Dec. 2004

Firstpage

41

Lastpage

44

Abstract

A general framework for performance optimization of continuous-time OTA-C filters is presented. Efficient procedures for evaluating nonlinear distortion and noise valid for any filter of arbitrary order are developed, based on a matrix description of a general OTA-C filter model. A systematic optimization procedure using equivalence transformations is discussed. An application example of the proposed approach to optimal block sequencing and gain distribution of an 8^th order cascade Butterworth filter is given. Theoretical results are verified using transistor-level simulation with CADENCE.

Keywords

Butterworth filters; cascade networks; circuit optimisation; continuous time filters; nonlinear distortion; nonlinear network analysis; nonlinear network synthesis; operational amplifiers; continuous-time OTA-C filters; equivalence transformations; filter dynamic range; filter matrix description; filter output noise; high order cascade Butterworth filter; linearity optimization; nonlinear analysis; nonlinear distortion; optimal block sequencing; optimal gain distribution; transconductance-capacitor technique; Capacitors; Dynamic range; Electronic mail; Filters; Informatics; Linearity; Optimization; Transconductors; Transient analysis; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2004. ICECS 2004. Proceedings of the 2004 11th IEEE International Conference on

Print_ISBN

0-7803-8715-5

Type

conf

DOI

10.1109/ICECS.2004.1399609

Filename

1399609