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Chapter 15
A/D Converter
Preliminary User’s Manual U15839EE1V0UM00
(5)
Full-scale Error
This shows the difference between the actual measurement value of the analog input voltage and
the theoretical value (3/2 LSB) when the digital output changes from 1...110 to 1...111.
Figure 15-17:
Full-Scale Error
(6)
Nonlinearity Error
This shows the degree to which the conversion characteristics deviate from the ideal linear rela-
tionship. It expresses the maximum value of the difference between the actual measurement value
and the ideal straight line when the zero scale error and full scale error are 0.
Figure 15-18:
Nonlinearity Error
111
110
101
000
0
AV
REF
AV
REF
- 1
AV
REF
- 2
AV
REF
- 3
Digital output (Lo
w
er order 3 bits)
Analog input (LSB)
Ideal line
Full-scale error
0
AV
REF
Digital output
Analog input
Nonlinearity
error
Ideal line
1.......1
0.......0
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