| 摘要 |
PROBLEM TO BE SOLVED: To provide an amplifier circuit for outputting an input signal while amplifying in which dynamic range is widened and an input signal can be amplified with high accuracy. SOLUTION: The amplifier circuit has a circuit (124) for generating the absolute value signal of an input signal and delivering it as an output signal, and a circuit (128) for generating a polarity identification signal of the input signal. COPYRIGHT: (C)2004,JPO
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