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논문 기본 정보

자료유형
학술저널
저자정보
Manisha Guduri (Birla Insitute of Technology - Electronics and Communications Engineering) Aminul Islam (Birla Insitute of Technology - Electronics and Communications Engineering)
저널정보
대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.17 No.2
발행연도
2017.4
수록면
302 - 317 (16page)

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초록· 키워드

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This paper proposes a new full adder design based on pass-transistor logic that offers ultralow power dissipation and superior variability together with low transistor count. The pass-transistor logic allows device count reduction through direct logic realization, and thus leads to reduction in the node capacitances as well as short-circuit currents due to the absence of supply rails. Optimum transistor sizing alleviates the adverse effects of process variations on performance metrics. The design is subjected to a comparative analysis against existing designs based on Monte Carlo simulations in a SPICE environment, using the 22-nm CMOS Predictive Technology Model (PTM). The proposed ULP adder offers 38% improvement in power in comparison to the best performing conventional designs. The trade-off in delay to achieve this power saving is estimated through the power-delay product (PDP), which is found to be competitive to conventional values. It also offers upto 79% improvement in variability in comparison to conventional designs, and provides suitable scalability in supply voltage to meet future demands of energy-efficiency in portable applications.

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Abstract
I. INTRODUCTION
II. EXISTING FULL ADDER DESIGNS
III. ANALYSIS OF FULL ADDER MODULES
IV. PROPOSED ULP FULL ADDER DESIGN
V. PERFORMANCE EVALUATION
VI. CONCLUSION
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UCI(KEPA) : I410-ECN-0101-2018-020-000839868