| 摘要 |
PROBLEM TO BE SOLVED: To decrease harmonics distortion. SOLUTION: This circuit is a track-and-hold circuit comprising a MOS transistor switch 3, a hold-capacitor 4, a constant voltage circuit 6 provided with a MOS transistor 3, obtaining an optimum point from a substrate potential and a distortion characteristics, storing it in a memory, and biasing a bulk potential of a MOS transistor with the constant voltage through DAC.
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