Flexibility-oriented Design Methodology for Reconfigurable ΔΣ Modulators

This paper presents a systematic methodology for producing reconfigurable ΔΣ modulator topologies with optimized flexibility in meeting variable performance specifications. To increase their flexibility, topologies are optimized for performance attributes pertaining to ranges of values rather than being single values. Topologies are implemented on switched-capacitor reconfigurable mixed-signal architectures. As the number of configurable blocks is very small, it is extremely important that the topologies use as few blocks as possible. A case study illustrates the methodology for specifications from telecommunications area