Design of Low Power Hybrid Level Shifter using MTCMOS

A level shifter is a circuit that translates logic signals from one level to another. Here, we present a level shifter with wide range of conversion. The proposed design comprises of a modified Wilson Level Shifter and a Cross Coupled Level Shifter. The Wilson Level Shifter boosts the input voltage to a desired level with some leakage. The Cross Coupled Level Shifter is implemented at the second stage to achieve the full output swing. To achieve the low power and an efficient level shifting, the proposed design is employed with a hybrid model integrated with power gated Multi-Threshold CMOS (MTCMOS) approach. This results in reduced power consumption to a greater extent. The proposed work is simulated using 45nm CMOS fabrication technology using Cadence Virtuoso simulation software and it consumes about 90% lesser power than that of the conventional hybrid structure and 78.6% lesser power than that of Existing modified Wilson current mirror-based level shifter.