參數(shù)資料
型號: MB90523B
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16位微控制器專有
文件頁數(shù): 90/99頁
文件大?。?/td> 978K
代理商: MB90523B
MB90520A/520B Series
90
6.
Resolution
Linearity error
A/D Converter Glossary
(Continued)
: The change in analog voltage that can be recognized by the A/D converter.
: The deviation between the actual conversion characteristics and the line linking the
zero transition point (“00 0000 0000
B
←→
“00 0000 0001
B
”) and the full scale transi-
tion point (“11 1111 1110
B
←→
“11 1111 1111
B
”) .
Differential linearity error : The variation from the ideal input voltage required to change the output code by 1 LSB.
Total error
: The total error is the difference between the actual value and the theoretical value.
This includes the zero-transition error, full-scale transition error, and linearity error.
3FF
H
3FE
H
3FD
H
004
H
003
H
002
H
001
H
AVRL
D
AVRH
0.5 LSB
0.5 LSB
V
NT
(Measured value)
{1 LSB
×
(N
1)
+
0.5 LSB}
Total Error
Analog Input
Actual conversion
characteristic
Actual conversion
characteristic
Theoretical characteristic
1 LSB
=
(Theoretical value)
V
OT
(Theoretical value)
=
AVRL
+
0.5 LSB [V]
V
FST
(Theoretical value)
=
AVRH
1.5 LSB [V]
V
NT
: Voltage at which digital output changes from (N
1) to N
AVRH
AVRL
1024
*
[V]
Total error for digital output N
=
V
NT
{1 LSB
×
(N
1)
+
0.5 LSB}
1 LSB
[LSB]
* : For 10-bit resolution, this value is 1024 (2
10
) . For 8-bit resolution, this value is 256 (2
8
) .
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