My customer is evaluating AMC1203.
It is described that "A differential input of +280mV produces a stream of ones and zeros that are high 87.5% of the time" on the datasheet.
However they say that 87.5% is reached when input voltage is +250mV on their measurement.
They're measuring on the following schematic.
Does is have any problem?
Why does output reach 87.5% when input voltage is +250mV?
Should I request them any waveform ?