A leakage tolerant energy efficient wide domino circuit technique

Deep submicron noise, especially leakage current, greatly impacts the performance of wide dynamic gates. Quite often, energy is traded off for increased leakage tolerance. In this paper, a leakage tolerant energy efficient wide domino gate is presented. The proposed technique achieves faster evaluation by splitting the wide gate into two sections and consequently slashing the capacitance of the dynamic node by half. Using the new technique, the same level of leakage tolerance can be achieved with around 12% and 28% reduction in energy for 16-input and 32-input OR gates, respectively, compared to the conventional technique.