Document Number: 002-10635 Rev. *I
Page
255 of 325
S6J3310/20/30/40 Series
9.1.5.3
Glossary
Resolution: Analog change that can be identified by an A/D converter
Integral linearity error: Deviation of the straight line connecting the zero transition point ("0000 0000 0000" <--> "0000 0000 0001")
and full-scale transition point ("1111 1111 1110" <--> "1111 1111 1111") from actual conversion characteristics
includes zero transition error, full-scale transition error, and non linearity error.
Differential linearity error: Deviation from the ideal value of the input voltage required for changing the output code by 1 LSB
Total error: Difference between the actual value and the theoretical value. The total error
Total error
Total error of digital output N =
V
NT
- {1 LSB × (N-1) + 0.5LSB}
[LSB]
1LSB
1LSB (Ideal value) =
AVRH - AVRL
[V]
4096
N: A/D converter digital output value.
V
ZT
(Ideal value) = AVRL + 0.5LSB[V]
V
FST
(Ideal value) = AVRH - 1.5LSB[V]
V
NT
: Voltage at which the digital output changes from "(N – 1)" to "N".
FFF
FFE
FFD
004
003
002
001
AVRL
AVRH
{1 LSB (N - 1) + 0.5LSB}
1.5LSB
V
NT
0.5LSB
Ideal characteristics
Actual conversion
characteristics
(Actually-measured
value)
Analog input
Actual conversion
characteristics
(measured value)
Dig
ital ou
tp
ut
