CURRENT-MODE CMOS MULTIPLE-VALUED LOGIC-CIRCUITS

Current-mode CMOS circuits are receiving increasing attention. Current -mode CMOS multiple-valued logic circuits are interesting and may have applications in digital signal processing and computing. In this pape r we review several of the current-mode CMOS multiple-valued logic (MV L) circuits that we have studied over the past decade. These circuits include a simple current threshold comparator, current-mode MVL encode rs and decoders, current-mode quaternary threshold logic full adders ( QFA's), current-mode MVL latches, current-mode latched QFA circuits, a nd current-mode analog-to-quaternary converter circuits. Each of these circuits is presented and its performance described.