| 摘要 |
PROBLEM TO BE SOLVED: To provide a voltage output device and an offset cancellation method for a voltage output device which quickly finish an offset cancellation process.SOLUTION: While a voltage appearing at an output terminal OUT of a differential amplifier 6 with a first switch element 1 establishing a short circuit between a non-inverting input terminal INP and an inverting input terminal INN thereof is supplied to current regulation means via a second switch element 2 to regulate a current value of an output current, the voltage on the output terminal OUT acquired via the second switch element 2 is held as an offset adjustment value. The non-inverting input terminal INP and the inverting input terminal INN of the differential amplifier 6 are released from the short circuit state made by the first switch element 1, and the current regulation means regulates the output current in accordance with the offset adjustment value held in the holding means. |
