A digital/analog converter circuit includes: a decoding unit that performs decoding processing on a bit signal in a predetermined part of a digital signal; and a selector circuit that selects and outputs a voltage depending on an output of the decoding unit, in which a switching device is disposed on at least one of inside of the decoding unit and an output unit side of the decoding unit, the switching device being controlled by a control signal different from the hit signal as a target for the decoding processing.