Design Methodology of Asynchronous Comparator/Mux

This paper discusses a new type of low-power asynchronous comparator-mux. The asynchronous design stabilizes the data input into the comparator and multiplexer to avoid glitches and transition data generated in the synchronous circuit due to the asynchronization between the comparator and multiplexer. It also leads to a decrease in power consumption. For a 16-bit comparator-mux, the asynchronous design uses just 40.6% of the power of the synchronous design. With the bit width increases, the power consumption of the asynchronous design is much lower than the corresponding synchronous design.