This paper presents two novel current-mode Full Adders based on Carbon Nanotube FET (CNFET). They comprise of three main parts: current-to-voltage converter, threshold detector and voltage-to-current converter. While other designs in the literature use either inverter or current source for detecting threshold, the new designs are based on a heuristic usage of an Ultra Low-Power Diode (ULPD) as voltage regulator. The use of diode does not lengthen the critical path and thereby ensuring high-speed operation. It does not increase power consumption significantly either. Simulation results by HSPICE and 32nm CNFET technology file demonstrate at least 19% higher performance in terms of energy consumption for the second proposed Full Adder compared to other traditional and state-of-the-art current-mode and mixed-mode designs.

中文翻译：

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两种使用 ULPD 作为稳压器的基于电流模式 CNFET 的新型全加器

本文介绍了两种基于碳纳米管 FET (CNFET) 的新型电流模式全加器。它们由三个主要部分组成：电流-电压转换器、阈值检测器和电压-电流转换器。虽然文献中的其他设计使用逆变器或电流源来检测阈值，但新设计基于启发式使用超低功率二极管 (ULPD) 作为电压调节器。二极管的使用不会延长关键路径，从而确保高速运行。它也不会显着增加功耗。HSPICE 和 32 的仿真结果nm CNFET 技术文件表明，与其他传统和最先进的电流模式和混合模式设计相比，第二个提议的全加器的能耗性能至少提高了 19%。