| 摘要 |
PROBLEM TO BE SOLVED: To provide an analog signal switching circuit that can be used even for a signal with a low distortion rate. SOLUTION: The analog signal switching circuit is provided with a noninverting amplifier circuit 1 with a negative feedback circuit for amplifying an input signal, analog switches 2, 3 connected in series that selectively lead an output of the noninverting amplifier circuit 1 to the negative feedback circuit, and an analog switch 4 that is driven by a control signal to selectively lead a signal at a connecting point between the analog switches 2 and 3. Distortion at the analog switch 3 cancels distortion by the analog switch 4.
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