LOW SWING CURRENT MODE LOGIC FAMILY

摘要

The present invention provides a low swing current mode logic circuit comprising: a current mode logic block having data inputs and outputs; a pre-charging circuit for pre-charging the outputs; a dynamic current source; an evaluation circuit for evaluating the logic block during an evaluation phase; and, a feedback path arranged between the outputs and the dynamic current source which is responsive to a difference between the outputs. The simplicity of generating the low swing, achieved by the feedback which may be implemented by only two transistors, is in contrast with the complexity introduced by some methods used by other logic styles for achieving low swing.