Patent ID: 8681031

Claim:
A resistor string type D/A converter comprising: a higher-order decoder to which a digital signal is input; a higher-order resistor string in which a plurality of resistors and a plurality of voltage drawing points are alternately connected between a first reference voltage and a second reference voltage, the higher-order resistor string being configured to output a plurality of first voltages, each from a respective one of the plurality of voltage drawing points; a plurality of first higher-order switches connected to the plurality of voltage drawing points in a one-to-one configuration, conductive states of the first higher-order switches being controlled based on the digital signal; and a conversion unit that outputs a second voltage based on the plurality of the first voltages supplied through the plurality of first higher-order switches, wherein the higher-order decoder brings two first higher-order switches, among the plurality of first higher-order switches, into conduction based on the digital signal.