15GHz low-voltage-swing carry-lookahead adder

Fatemeh Kashfi; Amir Agah; S. Mehdi Fakhraie; Saeed Safari

doi:10.1587/elex.4.696

LETTER

15GHz low-voltage-swing carry-lookahead adder

Fatemeh Kashfi, Amir Agah, S. Mehdi Fakhraie, Saeed Safari

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Keywords: carry-lookahead adder, low-voltage-swing

JOURNAL FREE ACCESS

2007 Volume 4 Issue 22 Pages 696-700

DOI https://doi.org/10.1587/elex.4.696

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Abstract

We describe a high speed adder that employs a carry-lookahead structure and uses low-voltage-swing pass-transistor-based Manchester carry chain. This structure is implemented in 65nm technology and accommodates 15GHz clock frequency at the slowest corner which is 20% higher than the highest speed in the previously studied high-speed structures.

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