Design of low power, high speed 4 bit binary to Gray converter with 8 × 4 barrel shifter using nano dimensional MOS transistor for arithmetical, logical and telecommunication circuit and system application

Abstract

In this work the design of 4 bit binary to Gray code converter circuit with 8 × 4 barrel shifter has been carried out. The circuit has been designed using metal oxide semiconductor (MOS) transistor. The verification of the functionality of the circuits has been performed using Tanner-SPICE software. Power consumption and speed are the major design metrics for very large scale integrated circuit. In this work the average power consumption and gate delay analysis of 4 bit binary to Gray converter with 8 × 4 barrel shifter has been carried out using nano dimensional MOS transistor having channel length of 150 nm. Power consumption, delay analysis has been carried out for different set of supply voltage. It has been observed that power consumption of the 4 bit binary to Gray converter with 8 × 4 barrel shifter has been reduced by reducing the power supply voltage VDD. The power consumption and delay offers by the circuit is very less. At 1 V VDD, power consumption and delay are 0.15 μW and 52.7 ps respectively. Therefore the circuit is suited for low power and high speed application in the area of arithmetical, logical and telecommunication.