MB90P663APFM View Datasheet(PDF) - Fujitsu
Part Name
Description
Manufacturer
MB90P663APFM Datasheet PDF : 84 Pages
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MB90660A Series
6. Definitions of A/D Converter Terms
Resolution
Total error
Linearity error
Differential linearity error
: Analog transition observed with an A/D converter.
Analog voltage can be divided in 1024 = 210 parts at 10-bit resolution.
: This refers to the difference between actual and logical values. This error is
caused by offset errors, gain errors, non-linearity errors and noise.
: Deviation of the line drawn between the zero transition point (00 0000 0000 ↔
00 0000 0001) and the full-scale transition point (11 1111 1110 ↔ 11 1111
1111) for the device from actual conversion characteristics.
: Deviation from ideal input voltage required to shift output code by one LSB.
Digital output
11 1111 1111
11 1111 1110
•
•
•
•
•
•
•
•
•
•
•
00 0000 0010
00 0000 0001
00 0000 0000
VOT
(1LSB × N + VOT)
Linearity error
VNT V(N + 1)T
VFST – VOT
1LSB =
1022
Linearity error = VNT – (1LSB × N + VOT )
1LSB
V(N + 1) T – VNT
Differential linearity error =
1LSB
(LSB)
– 1 (LSB)
Analog input
VFST
60
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