Patent ID: 7006027

Claim:
A digital-to-analog (D/A) converter comprising: a voltage generator using voltage drops in resistors to generate a plurality of reference voltages forming a monotonic sequence of voltage levels; a first control circuit for selecting an arbitrary one of the plurality of reference voltages as a first output; a second control circuit for selecting another one of the plurality of reference voltages, adjacent in the monotonic sequence to the one of the plurality of reference voltages selected by the first control circuit, as a second output; and a third control circuit for generating a third output from the first output and the second output, having a first resistor and a first switching device connected in series between the first output and the third output, and a second resistor and a second switching device connected in series between the second output and the third output: wherein the reference voltages are numbered by consecutive integers in order of the monotonic sequence; the first output is an even-numbered reference voltage; and the second output is an odd-numbered reference voltage.