Automatic Gate Biasing of an SCCMOS Power Switch Achieving Maximum Leakage Reduc

Abstract

ndre Valentian and Edith Beigné Abstract—Power switch transistors are very effective in cutting the leakage currents of digital circuits in a deep-freeze mode, by de-supplying unused blocks. Among existing power switch transis- tors, Super Cut-off CMOS (SCCMOS) is the most suited to a low supply voltage environment since it uses a low threshold voltage transistor. This power switch type achieves good leakage reduc- tion results, provided that an optimal voltage is applied on its gate in order to