Basic cell for comparing a first and a second digital signal to each other and relating digital comparator

摘要

The invention relates to a basic cell (11) for comparing a first and a second digital signal (A, B), of the type having at least a first and a second input (I1, I2) and a first and a second output (O3, O4) and comprising at least one logic gate (14) receiving digital signals (A, B) at a first and a second signal input (IS1, IS2), and which comprises at least a first and a second controlled switch (P1, P2) inserted in parallel with each other between the output terminal of the logic gate (14) and the second output (O4) from the cell (11), the first switch (P1) being also connected between the first input (I1) and the first output (O3) of the cell (11) and the second switch (P2) being also connected between the second input (I2) and the second output (O4) of the cell (11).;The invention also relates to a digital comparator (9) comprising a plurality of basic cells according to the invention.