Patent ID: 6232908
Filing Date: 2001-05-15
Classification: H03M

Abstract:
An analog-to-digital (A/D) converter comprising:a reference voltage generator for generating a plurality of reference voltages;a comparing section including a plurality of comparing elements each comparing an input analog signal against a corresponding one of said reference voltages to output a thermometric code; anda dynamic encoder including a plurality of bit lines and a dynamic combinational circuit transferring said thermometric code to said bit lines by responding to a clock,wherein said input analog signal is converted in a single clock cycle to a binary code generated on said bit lines and corresponding to a magnitude of said input analog signal;wherein a rate of conversion is substantially independent of a number of bits to be output,wherein each comparing element of said comparing section comprises a comparator and a level converter for amplifying an output from said comparator by responding to a clock signal, and,wherein said level converter comprises CMOS transistors.