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Performance of adders has a tremendous impact on system-level functionality especially in signal processing applications. Carry Select Adder (CSLA) is one such adder which is proved to be a high speed version among other conventional adders. This paper presents a novel architecture for SQRT-CSLA with modified ripple carry adder chain. The pivotal feature of the proposed architecture is that the final-sum...
Almost all electronic systems suffer from errors caused by various internal and external factors. In many designs automatic detection and correction of errors is of prime importance. In the meantime the techniques that add to detect and correct errors will make the system more sluggish. This paper proposes a method for error detection and correction in parallel IIR filters based on error correction...
Addition is the most widely utilized arithmetic operations in any adder circuits. The performance of an adder is a speed determining factor for arithmetic operations. This project is proposed to analyse and compare the performance of various adder circuits in order to obtain the design of a high throughput aging-aware variable latency multiplier. The moderate performance degradation is achieved in...
Adders are the basic elements used in complex data processing for efficient VLSI design. The CSLA adder circuit is used for the design of high speed processors. There is scope for decreasing the power and area of the design while preserving the speed of the circuit in CMOS technology. The CSLA adder architecture is such that it is of less power dissipation, area efficient and high speed. In this paper...
Arithmetic Logic Units are one of the vital unit in general purpose processors and major source of power dissipation. In this paper we have demonstrated an optimized Arithmetic and Logic Unit through the use of an optimized carry select adder. Carry select adders have been considered as the best in their category in terms of power and delay. In this context a full adder optimized in terms of power...
In this paper, area-efficient Vedic multiplier is designed using modified Carry Select Adder (CSLA). As the multiplication is nothing but subsequent addition process, adder is important block in the design of multiplier. Simple Ripple Carry adder (RCA) can be used for implementing multiplier. Digital adder has problem of carry propagation, thus carry select adder is used instead. Carry select adder...
Low power and reduced area with high performance digital adder are the main constraints in processors. The main objective of the work is to develop a architecture which reduces the energy consumption of arithmetic modules. Here both the multiplier and divider which perform up scaling and downscaling are embedded in a single shifting based architecture so that the area gets reduced and the power also...
This paper shows the implementation and comparison of Carry Select Adder (CSA) using BEC (Binary Excess one Converter) and First Zero Finding (FZF) logic implementation techniques with optimization of the Full Adder (FA) cell by minimize number of transistors. The results have been analyzed and compared for implementation of both the above logic styles for 28T, 10T and 8T FA cells where as keeping...
In this paper, a high speed and low power 16×16 Vedic Multiplier is designed by using low power and high speed modified carry select adder. Modified Carry Select Adder employs a newly incremented circuit in the intermediate stages of the Carry Select Adder (CSA) which is known to be the fastest adder among the conventional adder structures. A Novel technique for digit multiplication namely Vedic multiplication...
The yield of low voltage digital circuits is found to he sensitive to local gate delay variations due to uncorrelated intra-die parameter deviations. Caused by statistical deviations of the doping concentration they lead to more pronounced delay variations for minimum transistor sizes. Their influence on path delays in digital circuits is verified using a carry select adder test circuit fabricated...
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