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In this paper, we propose a new approach to thermometer-to-binary encoder of Flash ADCs. Instead of integrating bubble error correction circuit as previous approaches, proposed approach integrates a bubble error detection circuit. The advantage of this approach is that it can handle all types of bubble error whereas previous approaches often deal with first-order bubble error only. Simulation results show that the bubble error detection circuit consumes very little energy.
Date of Conference: 7-10 Aug. 2011