Thermometer-to-binary encoder with bubble error correction (BEC) circuit for Flash Analog-to-Digital Converter (FADC)

Thermometer-to-binary (TM2B) encoder is an important component of a Flash Analog-to-Digital Converter (FADC). Bubble error, extremely often, effects the correction of TM2B as well as high speed sampling rate. In this paper, we propose a MUX-based TM2B circuit that can correct bubble errors. Error correction ability of our proposed circuit is compatible with previous methods. The simulation results show that the proposed circuit requires a small number of transistors and consumes low power.