Reconfigurable ΔΣ modulator topology design through hierarchical mapping and constraint extraction

Authors:
Ying Wei;Alex Doboli
Affiliations:
Department of Electrical and Computer Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2350, USA;Department of Electrical and Computer Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2350, USA
Venue:
Integration, the VLSI Journal
Year:
2009

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Abstract

This paper presents a novel methodology for designing reconfigurable continuous-time @D@S modulator topologies while considering circuit-level implementation constraints. Topologies are optimized for minimizing their structural complexity, maximizing their robustness with respect to circuit nonidealities, and maximizing the feasibility of their circuit-level implementation. A case study for a three mode reconfigurable @D@S modulator shows that the produced topologies avoid circuit-level implementation difficulties existing in other approaches.