| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter circuit capable of reducing a circuit area and decreasing an offset included in an output signal.SOLUTION: The filter circuit includes a first capacitor connected between an input terminal and an output terminal and a bias circuit connected between the output terminal and setting electrical potential. The bias circuit has a first MOS (Metal-Oxide Semiconductor) transistor connected between the output terminal and the setting electrical potential, a second capacitor connected between a gate of the first MOS transistor and the output terminal, and a resistance element with one end connected to the gate of the first MOS transistor and the other end applied with a first bias electrical potential. |
