Patent ID: 6246352
Filing Date: 2001-06-12
Classification: H03M

Abstract:
An analog-to-digital converter, comprising:an input for receiving an input analog voltage;a digital-to-analog circuit, comprising:a meandering string of series connected resistive elements, wherein the string comprises a plurality of voltage taps;a number of bit lines;a number of word lines,wherein, for a given input analog voltage, the given input analog voltage is closest to a voltage at a selected one of the plurality of taps; andwherein the selected one of the plurality of taps is associated with one of the number of bit lines and one of the number of word lines;and wherein the analog-to-digital converter further comprises:a flash circuit coupled to receive the input analog voltage from the input and in response to identify either the one of the number of bit lines or the one of the number of word lines; andan output for providing a digital output value in part in response to the identified one of the number of bit lines or the one of the number of word lines.