Improved techniques for high performance noise-tolerant domino CMOS logic circuits

Dynamic CMOS gates are widely exploited in high-performance designs because of their speed. However, they suffer from high noise sensitivity. The main reason for this is the sub-threshold leakage current flowing through the evaluation network. This problem becomes more and more severe with continuous scaling of the technology. A new circuit technique for increasing the noise tolerance of dynamic CMOS gates is designed. A comparison with previously reported schemes is presented. Simulations proved that, when 90 nm CMOS technology is used to realize wide fan-in gates, the proposed design technique can achieve the highest level of noise robustness.