參數(shù)資料
型號: MB90P224A
廠商: Fujitsu Limited
英文描述: 8-Bit Proprietary Microcontroller(8位專用微控制器)
中文描述: 8位微控制器專利(8位專用微控制器)
文件頁數(shù): 78/105頁
文件大小: 1130K
代理商: MB90P224A
MB90220 Series
78
A/D Converter Glossary
Resolution
Analog changes that are identifiable with the A/D converter
When the number of bits is 10, analog voltage can be divided into 2
10
= 1024.
Total error
Difference between actual and logical values. This error is caused by a zero transition error, full-scale transition
error, linearity error, differential linearity error, or by noise.
Linearity error
The deviation of the straight line connecting the zero transition point (“00 0000 0000”
“00 0000 0001”) with
the full-scale transition point (“11 1111 1111”
“11 1111 1110”) from actual conversion characteristics
Differential linearity error
The deviation of input voltage needed to change the output code by 1 LSB from the theoretical value
Note: The values shown here are reference values.
Analog input
Comparator
C
1
C
0
R
ON2
R
ON1
R
ON1
: Approx. 1.5 k
R
ON2
: Approx. 1.5 k
C
0
: Approx. 60 pF
C
1
: Approx. 4 pF
Analog Input Circuit Mode
V
FST
V
NT
V
0T
1LSB
V
FST
– V
0T
1022
=
Linearity error
V
NT
– (N
×
1LSB + V
0T
)
1LSB
=
Differential linearity error
V
NT
– V
(N–1)T
1LSB
=
Total error
Digital output
11 1111 1111
11 1111 1110
11 1111 1101
N + 1
N
N – 1
00 0000 0010
00 0000 0001
00 0000 0000
– 1
V
(N + 1)T
N = 0 to 1022
V
NT
(N = 0) = V
0T
V
NT
(N = 1022) = V
FST
N = 1 to 1022
Linearity error
N
×
1LSB + V
0T
V
(N – 1)T
V
1T
V
2T
Theoretical value (V
NT
)
Theoretical value
Actual conversion value
AVRL
AVRH (V)
, 1LSB theoretical value
AVRH
– AVRL
1022
=
Total error
V
NT
– {(N + 0.5)
×
1LSB theoretical value}
1LSB theoretical value
=
N = 0 to 1022
相關(guān)PDF資料
PDF描述
MB90223 8-Bit Proprietary Microcontroller(8位專用微控制器)
MB90P224B 8-Bit Proprietary Microcontroller(8位專用微控制器)
MB90P224BPF 16-Bit Edge-Triggered D-type Flip-Flops With 3-State Outputs 48-CFP -55 to 125
MB90W224A 16-bit Proprietary Microcontroller
MB90W224B 16-bit Proprietary Microcontroller
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