| 摘要 |
Provided is voltage/current conversion circuit including: first and second capacitors; first and second resistors each connected to input terminal; first and second current sources; third and fourth resistors connected to current sources; differential amplifier for controlling the current sources; control unit for performing control, in first state, the input terminal is connected to the first and second capacitors; one input of the differential amplifier is connected to the first resistor and output of the first current source; the other input of the differential amplifier is connected to the second resistor and output of the second current source, and in second state, the second capacitor is connected between the output of the first current source and the one input of the differential amplifier, the first capacitor is connected between the output of the second current source and the other input of the differential amplifier.
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