| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample hold circuit using a switch capable of sufficiently reducing the distortion of an output signal even if reducing a power supply voltage. SOLUTION: A plurality of different reference voltages VrefN are set, and when the voltage of an analog input signal 1 is beyond each reference voltage, a corresponding unit switch 11e is turned on. Thus, the corresponding unit switch 11e is turned on, based on a compared result from each comparator circuit 13e, according to the voltage value of the analog input signal 1 so that the dependency of the voltage of the analog input signal on an on resistance value can be relaxed.
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