| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital analog converter capable of reducing the number of elements and an area. SOLUTION: A circuit comprises a reference voltage generating circuit 100 for outputting a plurality of reference voltages different from each other in voltage values, a first logic circuit 310 for outputting a result of logical calculation of a first bit group composed of one of odd and even bits from among a plurality of bits of inputted digital data signal, a second logic circuit 320 for outputting a result of logical calculation of a second bit group composed of the other of odd and even bits from among the plurality of bits of the digital data signal, switch groups 200 for supplying selected voltages including duplication to a first and second terminals (T1, T2) in response to each output of the first and second logic circuits among plural numbers of reference voltages to be outputted from the reference voltage generating circuit, and an amplifying circuit 500 for outputting an output voltage after performing predetermined calculation relating to voltages inputted from the first and second terminals. COPYRIGHT: (C)2007,JPO&INPIT
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