Very Fast, High-Performance 5-2 and 7-2 Compressors in CMOS Process for Rapid Parallel Accumulations
In: IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Jg. 28 (2020-06-01), S. 1403-1412
Online
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Zugriff:
Design methodology for ultrahigh-speed 5-2 and 7-2 compressors has been illustrated in this article. With the help of introduced procedure, the gate-level delay has been reduced considerably when compared with the previous designs, while the total transistor and gate count remain in a reasonable range. By starting the discussion for the carry rippling problem in $n-2$ compressors, the method has been developed for 5-2 compressor and is expanded for 7-2 architecture, which shows 32% and 30% improvement in speed performance for these structures, respectively. Also, the careful design considerations have been taken into account to keep other characteristics, such as power and active, are at a reasonable level. Moreover, for a fair comparative conclusion, the best-reported circuits have been redesigned, and their parasitic elements were extracted utilizing the same technology employed for the synthesis of the proposed circuits. Finally, a typical $16 \times 16$ bit multiplier has been implemented to investigate the efficiency of the designed compressor blocks. Based on the postlayout simulation results provided using HSPICE for TSMC 0.18- $\mu \text{m}$ standard CMOS technology and 1.8-V power supply, the proposed compressors demonstrate better speed performance and power–delay product (PDP) factor over previous works. As the results depict, the delay of 303 ps has been achieved for the 5-2 compressor while the measured delay of the designed 7-2 compressor is 464 ps.
Titel: |
Very Fast, High-Performance 5-2 and 7-2 Compressors in CMOS Process for Rapid Parallel Accumulations
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Autor/in / Beteiligte Person: | Azizian, Sarkis ; Fathi, Amir ; Mashoufi, Behbood |
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Zeitschrift: | IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Jg. 28 (2020-06-01), S. 1403-1412 |
Veröffentlichung: | Institute of Electrical and Electronics Engineers (IEEE), 2020 |
Medientyp: | unknown |
ISSN: | 1557-9999 (print) ; 1063-8210 (print) |
DOI: | 10.1109/tvlsi.2020.2983458 |
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