Design and Implementation of Low Power 4:2 Compressor using GDI Technique

Abstract: The objective is to develop a 4:2 compressor with GDI technique (Gate Diffusion Input). This is specifically aimed at reducing power consumption and digital circuit delays. The proposed GDI-based 4:2 compressor is compared to two existing designs: traditional CMOS design and 8T XOR-XNOR design. The results show that the GDI design saves 75.34% of the power consumptioncompared to traditional CMOS designs and 48.81% compared to the 8T XOR- XNOR designs. One of the main applications of this compressor is the design of multipliers, which is essentially important for efficient arithmetic operations in digital systems.The implementation of a GDI based 4:2 compressor in multiplier design improves the overall performance of the multiplier, achieving both faster calculations and lower energy consumption. When integrating the compressor with the 4x4 multiplier. The proposed design saves 51.24% of power supply compared to traditional CMOS design and 31.42% of power supply compared to 8T XOR-XNOR designs.