Reading device for analog non-volatile memory cell, has resistive divider connected between two outputs of voltage source circuit and provided with nodes connected respective input of comparator circuits

摘要

Sense amplifier (6) has input and output coupled to data memory cell (2) and one of two inputs of comparators (20a-20k). Voltage sources (10a,10b) has two outputs to supply two different reference voltage levels to comparator. Resistive divider (18) with intermediate nodes (26a,26k) is coupled between two outputs of voltage sources (10a,10b) so that each node is coupled with input of comparators. Independent claims are also included for the following: (a) Analog to digital converter; (b) Method of converting input analog signal into digital output signal.