MB89538APFM View Datasheet(PDF) - Fujitsu
Part Name
Description
Manufacturer
MB89538APFM Datasheet PDF : 62 Pages
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MB89530A Series
(3) A/D Converter Terms and Definitions
• Resolution
The level of analog variation that can be distinguished by the A/D converter.
• Linear error (unit : LSB)
The deviation between the value along a straight line connecting the zero transition point (“00 0000 0000”←→“00
0000 0001”) of a device and the full-scale transition point (“11 1111 1110”←→“11 1111 1111”) , compared with
the actual conversion values obtained.
• Differential linear error (Unit : LSB)
The deviation from the theoretical input voltage required to produce a change of 1 LSB in output code.
• Total error (Unit : LSB)
The difference between theoretical conversion value and actual conversion value.
Theoretical input/output
characteristics
Total error
3FF
VFST
3FF
Actual conversion
3FE
3FE characteristics
3FD
1.5 LSB
3FD (1 LSB I N +
0.5 LSB)
004
003
VOT
002
1 LSB
001
AVSS
0.5 LSB
Analog input
004
VNT
003
Actual
conversion
002
characteristics
Theoretical
001
characteristics
AVR
AVSS
AVR
Analog input
1 LSB =
VFST − VOT
1022
(V)
Total
error
in
digital
output
N
=
VNT
−
{1
LSB × N +
1 LSB
0.5
LSB}
(Continued)
48
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