| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipelined A/D converter capable of achieving low power consumption while preventing a reduction in feedback factor of an amplifier. SOLUTION: The pipelined A/D converter converts an analog signal to a digital signal, including a plurality of stages connected in cascade connection and an error correction circuit which generates the digital signal, based on sub digital signals respectively outputted from the stages. When a sub digital signal of N bits is outputted in at least one of the stages in the pipelined A/D converter, the stage gain of a transfer function is 2<SP>N-K-1</SP>, the number of returns is 2<SP>N</SP>-2 and an integer K satisfies a relation of 1≤K≤N. COPYRIGHT: (C)2010,JPO&INPIT
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