A new approach to thermometer-to-binary encoder of flash ADCs- bubble error detection circuit

Abstract

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.