Automatic synthesis and simulation of continuous-time ΣΔ modulators

Author

Aboushady, H. ; de Lamarre, L. ; Beilleau, N. ; Louërat, M.M.

Author_Institution

Lab. of LIP6-ASIM, Paris Univ., France

Volume

1

fYear

2004

fDate

16-20 Feb. 2004

Firstpage

674

Abstract

This paper presents a mixed equation-based and simulation-based design methodology for continuous-time sigma-delta modulators from high level specifications down to layout. The calculation and scaling of the sigma-delta coefficients as well as circuit sizing and layout generation are implemented in the same analog design environment CAIRO+. The design of a complete third order current-mode continuous-time sigma-delta modulator is taken as an example to show the effectiveness of the proposed design methodology.

Keywords

circuit layout; circuit simulation; continuous time systems; modulators; network synthesis; sigma-delta modulation; Σ-Δ modulators; CAIRO+; analog design environment; automatic synthesis; circuit sizing; continuous-time modulators; current-mode modulator; equation-based design methodology; high level specifications; layout generation; sigma-delta coefficients; simulation-based design methodology; third order modulator; Circuit simulation; Circuit synthesis; Delta modulation; Delta-sigma modulation; Design methodology; Harmonic distortion; Nonlinear equations; Signal synthesis; Signal to noise ratio; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Design, Automation and Test in Europe Conference and Exhibition, 2004. Proceedings

ISSN

1530-1591

Print_ISBN

0-7695-2085-5

Type

conf

DOI

10.1109/DATE.2004.1268925

Filename

1268925