| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly universal digital/analog converter to which a user can optionally set a reference voltage. SOLUTION: A higher-order bit data converting part 1 converts high-order bit data into a higher-order analog voltage signal by using high-order and low- order reference voltages inputted from the outside, a control part 4 supplies a current I2 having a current value i1 corresponding to the higher-order and lower-order reference voltages to a lower-order bit converting part 2, the part 2 converts lower-order bit data into a lower-order analog current signal with the current I2 as the reference, and an adding part 3 performs current/voltage conversion of the lower-order analog current signal to be added to the higher- order analog voltage signal and outputs the lower-order analog current signal added to the higher-order analog voltage signal.
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