Patent ID: 6177900
Filing Date: 2001-01-23
Classification: H03M

Abstract:
A circuit for selecting one of divided encoders for an A/D converter, comprising:means for generating a thermometric code of plural bits having a level determined by a level of an analog signal to be converted to a digital signals;first to Nth encoders for encoding said thermometric code to provide said digital signal, each of said first to Nth encoders being supplied with a corresponding group of bits obtained by dividing said plural bits of said thermometric code by N, where N is an integer equal to or more than 2; andmeans for selecting one of said first to Nth encoders in accordance with a high or low level state(s) of a bit(s) at an (N-1)-dividing position(s) in division of said plural bits of said thermometric code by N, said one of said first to Nth encoders providing said digital signal converted from said analog signal.