| 摘要 |
PURPOSE: A linearity improved MDAC(Multiplying Digital to Analog Converter) is provided to secure linearity regardless of the error factors according to processes. CONSTITUTION: A linearity improved MDAC is provided with a capacitor array(30) having a plurality of unit capacitors(C1,C2,C3,C4) and an amplifying part(31) for outputting an analog signal by forming a feed-back loop with the unit capacitors. At this time, the unit capacitors selectively form the feed-back loop with the amplifying part according to an inputted digital code. Preferably, the linearity improved MDAC further includes a switching part for controlling the feed-back of the capacitor array according to the digital code.
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