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ST ANDARD CHARACTERISTICS
16.1 Standard characteristics
16.1.3 A-D converter standard characteristics
The lower line of the graph indicates the absolute precision errors. These are expressed as the deviation
from the ideal value when the output code changes. For example, the change in output code from 15 to
16 should occurs at 77.5 mV, but the measured value is –1.2 mV. Accordingly, the measured point of
change is 77.5 – 1.2 = 76.3 mV.
The upper line of the graph indicates the input voltage width for which the output code is constant. For
example, the measured input voltage width for which the output code is 16 is 4.9 mV, so that the differential
non-linear error is 4.9 – 5 = –0.1 mV (–0.02 LSB).
16–4
7751 Group User's Manual
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