Design of approximate reverse carry select adder using RCPA

Q3 Engineering

International Journal of Electronics Letters Pub Date : 2022-04-29 DOI:10.1080/21681724.2022.2062791

Rajasekhar Turaka, Koteswar Rao Bonagiri, Talla Srinivasa Rao, G. Kumar, Sudharsan Jayabalan, V. Sreenivasulu, Asisa Kumar Panigrahy, M. Prakash

引用次数: 7

Abstract

ABSTRACT An approximate carry select adder (CSLA) with reverse carry propagation (RCSLA) is showed in this work. This RCSLA was designed with reverse carry propagate full adder (RCPFA). In RCPFA structure, the carry signal propagates in the reverse direction that is from MSB part to LSB part, then the carry input has greater importance compared to the output carry. Three types of implementations were designed in RCPFA based on the design parameters. This method was applied to RCA & CSLA to design other types of approximate adders. These designs and simulations were done in CADENCE Software tool with 45 nm COMS technology. The design parameters of the three CSLA implementations with RCPFA are compared with the existing CSLA adders.

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基于RCPA的近似反向进位选择加法器设计

本文介绍了一种具有反向进位传播的近似进位选择加法器（CSLA）。该RCSLA是用反向进位传播全加器（RCPFA）设计的。在RCPFA结构中，进位信号在从MSB部分到LSB部分的相反方向上传播，那么与输出进位相比，进位输入具有更大的重要性。基于设计参数，在RCPFA中设计了三种类型的实现。该方法已应用于RCA和CSLA设计其他类型的近似加法器。这些设计和模拟是在CADENCE软件工具中使用45nm COMS技术完成的。将三种具有RCPFA的CSLA实现的设计参数与现有的CSLA加法器进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Electronics Letters Engineering-Electrical and Electronic Engineering

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： International Journal of Electronics Letters (IJEL) is a world-leading journal dedicated to the rapid dissemination of new concepts and developments across the broad and interdisciplinary field of electronics. The Journal welcomes submissions on all topics in electronics, with specific emphasis on the following areas: • power electronics • embedded systems • semiconductor devices • analogue circuits • digital electronics • microwave and millimetre-wave techniques • wireless and optical communications • sensors • instrumentation • medical electronics Papers should focus on technical applications and developing research at the cutting edge of the discipline. Proposals for special issues are encouraged, and should be discussed with the Editor-in-Chief.