| 摘要 |
PROBLEM TO BE SOLVED: To provide an analog/digital converter unit that can reduce its power consumption by varying a conversion period and a conversion timing of each channel and avoiding unnecessary conversion. SOLUTION: The analog/digital converter unit that sequentially converts an input analog signal of a plurality of channels into a digital signal, includes timing signal generating means 17, 10 that generate a prescribed number of timing signals for one period at a prescribed interval and repeat the period, a channel setting means that is synchronously with the sequence of the timing signals to set a channel at which the conversion is to be executed, and a conversion permission setting means 13 that sets either conversion permission or conversion disapproval to each channel, and selects a channel synchronously with the sequence of the timing signals and applies analog/digital conversion to the input analog signal of the selected channel when the conversion is permitted for the selected channel.
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