| 摘要 |
In a digital-to-analog converter, a logic circuit includes a plurality of MOS transistors each having a gate connected to one of input signal lines, a drain connected to a first power supply terminal and a source which has one of a connection state where the source is connected to one of output signal lines and a disconnection state where the source is not connected to the output signal lines. A reference current source includes a constant current source and a first transistor connected in series. A digital-to-analog conversion section includes a plurality of second transistors each connected to one of the output signal lines and to the first transistor. Each of the second transistors forming a current mirror circuit with the first transistor. The digital-to-analog conversion section also includes a plurality of third transistors each connected between an output terminal and one of the output signal lines.
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