Design of Current-Mode CMOS Quaternary Circuits Based on Threshold-Controllable Technique
基于控阈技术的四值电流型CMOS电路设计

Guided by the switch signal-theory,how to realiz e the threshold controlling in current-mode CMOS circuits is studied.The operatio ns of current transmission switch used to realize threshold-controlling circuit s are established.On this basis,several current-mode CMOS circuits with thresho ld-controllable function are designed.These circuits include quaternary current comparator,quaternary full adder and quaternary latch.By employing the threshol d-controlling technique,not only is the construction of the circuits simplified considerably but also the performance of the circuits is improved.The computer simulations with PSPICE demonstrate that the proposed circuits have correct logi c function.Furthermore,they have a better transient characteristics and lower po wer dissipation than those of the previously reported ones.