| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier circuit capable of realizing low power consumption and a highly precise output. SOLUTION: A control means 12 controls switch groups 4 and 5 and switches 1 to 3 to select a pair of capacitors corresponding to the voltage level of an input signal selected by an input signal selecting means 7, and to make the selected capacitors store the offset voltage of an arithmetic amplifier 10 generated in accordance with the input signal, and to correct the output of the arithmetic amplifier 10 by using an offset voltage held by the capacitor. COPYRIGHT: (C)2004,JPO
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