D/a converter

A D-A converter comprising:

• a resistor string that generates a plurality of voltages including an upper limit voltage, a lower limit voltage, and an intermediate voltage which is between the upper limit voltage and the lower limit voltage;
• a first selector that selects and outputs a first voltage among the plurality of voltages according to a lower bit, the first voltage being selected from the intermediate voltage and a voltage lower than the intermediate voltage;
• a second selector that selects and outputs a second voltage according to a higher bit, the second voltage being one of a lower power supply voltage and the intermediate voltage or a voltage higher than the intermediate voltage;
• a third selector that selects and outputs a third voltage according to the higher bit, the third voltage being selected from the lower limit voltage and the lower power supply voltage;
• and
• an amplifier that adds the first voltage and the second voltage and subtracts the third voltage, to output an output voltage.