带有偏置电流源的双轨多值电流模式VLSI

T. Ike, T. Hanyu, M. Kameyama
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引用次数: 6

摘要

针对高性能算术VLSI系统,提出了一种新的偏置电流源电流反射镜。电流反射镜的延迟与输入电流成反比。偏置电流源的使用使得电流镜的输入电流增大,从而减小了开关延迟。作为所提出的双轨多值电流模式(MVCM)电路的典型示例,采用0.35-/spl mu/m CMOS技术设计了一个基数-2符号数全加法器。其性能优于无偏置电流源的MVCM电路。
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Dual-rail multiple-valued current-mode VLSI with biasing current sources
A new current mirror with a biasing current source is proposed for high-performance arithmetic VLSI systems. The delay for the current mirror is inversely proportional to the input current. The use of a biasing current source makes the input current of the current mirror increased, which results in smaller switching delay. As a typical example of the proposed dual-rail multiple-valued current mode (MVCM) circuit, a radix-2 signed-digit full adder is designed by using a 0.35-/spl mu/m CMOS technology. Its performance is superior to that of corresponding MVCM circuits without biasing current sources.
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