Patent ID: 7358886

Claim:
A voltage output digital-to-analog converter circuit, comprising: a plurality of switching elements provided corresponding to respective bits of an input digital signal to switch connection states of the plurality of switching elements to either the reference voltage terminal or the ground terminal according to the bits of the input digital signal; and a resistor network which includes first resistive elements and second resistive elements having a resistance value twice a resistance value of the first resistive elements and in which one ends of the second resistive elements are connected to the plurality of switching elements respectively, the first resistive elements are connected between neighboring pairs of the other ends of the second resistive elements respectively, and other ones of the second resistive elements and third resistive elements having a desired resistance value are series-connected between the other ends of the second resistive elements, which are connected to switching elements of the plurality of switching elements to which a most significant bit and a least significant bit are supplied, and the ground.