Threshold detector

PMOS current mirror

Linear
sum

Current source

Motivation – multi-valued devices

Multi-valued
current-mode MOS

nsigned
digit arithmetic

nHigh-speed,
Low supply voltage

T. Hanyu and M. Kameyama, “A 200 MHz pipelined
multiplier using 1.5 V-supply

multiple-valued MOS current-mode circuits with dual-rail source-coupled logic”,*IEEE Journal of
Solid-Statee Circuits, 1995
*
*IEEE **Trans. on Circuits and
Systems, *Aug.
1993*.*

multiple-valued MOS current-mode circuits with dual-rail source-coupled logic”,

A. Jain, R. Bolton and M.
Abd El-Barr, “CMOS Multi-Valued Logic Design”,

Building blocks

x

y

x+y