Mike san Thank you for your so prompt reply and your cooperation always! OK, we got it. Just in case, please confirm two points. VREF is 2.5V, that's why the maximum output(DO's data) is 2.5V, right? And then, is VREFC pin possible to be left floating(open) or should be bypassed with 100uF capacitance? Kind regards Hirotaka Matsumoto
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