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A Design Approach for Power-Optimized Fully Reconfigurable \Delta \Sigma A/D Converter for 4G Radios

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3 Author(s)
Yi Ke ; Katholieke Univ. of Leuven, Leuven ; Jan Craninckx ; Georges Gielen

This paper presents a novel design approach for fully reconfigurable low-voltage delta-sigma analog-digital converters for next-generation wireless applications. This approach guides us to find the power-optimal solution corresponding to the specifications of various wireless standards by exploring single-loop feedback and feedforward topologies with different filter order, number of quantizer bits, and oversampling ratios. Unlike previous multimode designs, this approach provides a better power efficiency. Based on this approach, a system-level design of a digitally programmable delta-sigma modulator for 4G radios is presented.

Published in:

IEEE Transactions on Circuits and Systems II: Express Briefs  (Volume:55 ,  Issue: 3 )