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Communication Dans Un Congrès Année : 2010

Accurate Multi-bit Feedback DAC Dedicated to High-speed Continuous-time DS Converters

Résumé

This paper presents the behavioral modeling and circuit design of an accurate multi-bit DAC dedicated to high speed Continuous-time DS converters. The multi-bit DAC element mismatch is modeled, demonstrating that the non-linearities coming from the feedback DACs is awful for Continuous-time DS modulators. The proposed DAC is dimensioned in order to achieve best matching, reaching an unit current source relative standard deviation up to 0.7%. A full high-speed Continuous-time DS converter is implemented using the accurate DAC, achieving a SNR of 76 dB in a widebandwidth of 20 MHz.

Domaines

Electronique
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Dates et versions

hal-00448816 , version 1 (20-01-2010)

Identifiants

  • HAL Id : hal-00448816 , version 1

Citer

André Mariano, Cédric Majek, Dominique Dallet, Jean-Baptiste Begueret, Yann Deval. Accurate Multi-bit Feedback DAC Dedicated to High-speed Continuous-time DS Converters. Latin American Symposium on Circuits and Systems, Feb 2010, Iguaçu Falls, Brazil. pp.64-69. ⟨hal-00448816⟩
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