Automatic Synthesis and Simulation of Continuous-Time Sigma Delta Modulators

Hassan Aboushady (1) , Laurent de Lamarre (1) , Nicolas Beilleau (1) , Marie-Minerve Rosset-Louërat (1)

1 CIAN - Circuits Intégrés Numériques et Analogiques

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.

Domaines: Informatique [cs]

Hassan Aboushady, Laurent de Lamarre, Nicolas Beilleau, Marie-Minerve Rosset-Louërat. Automatic Synthesis and Simulation of Continuous-Time Sigma Delta Modulators. DATE 2004 - Design Automation and Test in Europe Conference, Feb 2004, Paris, France. pp.674-675, ⟨10.1109/DATE.2004.1268925⟩. ⟨hal-01521097⟩