Patent ID: 7538707

Claim:
A digital-to-analog converting circuit comprising: m×N (m is an integer equal to or more than two and N is an integer equal to or more than two) or more number of digital-to-analog converting elements converting an input digital code of N+1 values to an analog code in one of three states of H level, L level, and non-selection to output; a first selecting section selecting digital-to-analog converting elements that output r (r is an integer equal to or smaller than N) number of H levels for a thermometer digital code expressing the input digital code with the number of H levels and L levels; and a second selecting section selecting the digital-to-analog converting elements that output N−r number of L levels, wherein selecting of the digital-to-analog converting element is controlled so that the same digital-to-analog converting element does not continuously output the same analog code as the first and second selecting sections cause the digital-to-analog converting elements selected respectively at the first digital-to-analog converting timing and at the second digital-to-analog converting timing to circulate in an inverse direction to each other.