Design and Analysis of Low-Power Wide-Range Voltage Level Shifters in Digital CMOS VLSI

Abstract

This paper presents the design and analysis of a low-power wide-range CMOS voltage level shifter (LPWR-VLS) optimized for digital VLSI applications. The proposed architecture supports broad voltage translation, minimizes leakage currents, and maintains robust operation across process, voltage, and temperature variations. Key design strategies include stacked transistor configurations, cross-coupled inverter topologies, and adaptive threshold voltage control to optimize speed and power. voltage level shifters are critical components in multi voltage CMOS VLSI systems, enabling reliable communication between blocks operating at different supply voltages. However, achieving both low-power operation and wide input/output voltage compatibility remains challenging, especially in deep-submicron technologies. Simulation results demonstrate that the LPWR-VLS achieves low static power consumption, fast propagation delay, and full voltage swing across a wide range of input voltages, making it suitable for energy-efficient multi-voltage digital systems.