| 摘要 |
PROBLEM TO BE SOLVED: To provide a D/A converter which is easily inspected, electronic equipment with a D/A converting unit, and method of easily inspecting the D/A converter. SOLUTION: The D/A converter includes a plurality of current sources, an analog switch for adding currents from the current sources, an operational amplifier and a decoder for controlling the analog switch in accordance with a digital signal. The decoder is characterized by selecting either a D/A conversion mode or a test mode during which the current sources are independently controlled one by one. COPYRIGHT: (C)2006,JPO&NCIPI
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