Design and implementation of ultra lowpower compressor using sub threshold adiabatic logic

Sub threshold adiabatic logic is analyzed under sub threshold regime to improve the efficiency of power consumption in ultra low power circuit designs. The schematics and layout of various compressors like 4-2, 5-2, 7-2 has been designed to show the workability of the proposed logic. Further, a parameter variation over temperature effects and process on sub threshold adiabatic logic based compressors has also been addressed separately. A comparative study of conventional logic implemented compressors and SAL[sub threshold adiabatic logic] compressors has been shown with a post layout simulations. The simulation results shows that sub threshold adiabatic unit can save significant energy consumption when compared with logically equivalent static CMOS implementation. Results are validated through extensive simulations using micro wind 3.1.1.