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Comparative Analysis of Different Full Adder Circuits


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1 KPR Institute of Engineering andTechnology, Arasur, Coimbatore, India
     

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Multiplier is the most commonly used circuits in the microprocessor and digital signal processors. The demands for low-power VLSI systems are increasing rapidly. . The speed of multiply operation is of great importance in digital signal processing as well as in the general purpose processors. Now a days, there are an increasing number of portable applications requiring small area, low power and high throughput circuitry. With the explosive growth in laptops, portable personal communication systems (PCS‟s) and evolution of the shrinking technology & flexible circuits, the circuits with low power consumption become the major problem for the design of microprocessor and system components. The adders and multipliers are the basic elements to construct the ASIC applications. In this regard a full adder circuits is the most important one, since it forms the basic element in any digital designs. Full adder is the main block of power dissipation of multipliers. In this paper five different full adder circuits are compared using EDA Tanner(Evaluation Version), simulations are base on 180nm CMOS technology.


Keywords

Full Adder, Multipliers, Multiplexer Based Adder, XOR based Adder.
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  • Comparative Analysis of Different Full Adder Circuits

Abstract Views: 222  |  PDF Views: 5

Authors

S. Prema
KPR Institute of Engineering andTechnology, Arasur, Coimbatore, India

Abstract


Multiplier is the most commonly used circuits in the microprocessor and digital signal processors. The demands for low-power VLSI systems are increasing rapidly. . The speed of multiply operation is of great importance in digital signal processing as well as in the general purpose processors. Now a days, there are an increasing number of portable applications requiring small area, low power and high throughput circuitry. With the explosive growth in laptops, portable personal communication systems (PCS‟s) and evolution of the shrinking technology & flexible circuits, the circuits with low power consumption become the major problem for the design of microprocessor and system components. The adders and multipliers are the basic elements to construct the ASIC applications. In this regard a full adder circuits is the most important one, since it forms the basic element in any digital designs. Full adder is the main block of power dissipation of multipliers. In this paper five different full adder circuits are compared using EDA Tanner(Evaluation Version), simulations are base on 180nm CMOS technology.


Keywords


Full Adder, Multipliers, Multiplexer Based Adder, XOR based Adder.