參數(shù)資料
型號： MB90242A
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-Bit Proprietary Microcontroller(16位專用微控制器)
中文描述： 16-BIT, 32 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, LQFP-80
文件頁數(shù)： 32/57頁
文件大小： 754K
代理商： MB90242A
MB90242A Series
32
6. A/D Converter Glossary
Resolution
Analog changes that are identifiable with the A/D converter.
If the resolution is 10 bits, the analog voltage can be resolved into 2
10
.
Total error
The difference between theoretical and actual conversion values caused by the zero transition error, full-scale
transition error, non-linearity error, differential linearity error, and 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 1110”
“11 1111 1111”) from actual conversion characteristics.
Differential linearity error
The deviation of input voltage needed to change the output by 1 LSB from the theoretical value.
Linearity error
1 LSB =
Digital output
(1 LSB
×
N + V
OT
)
V
FST
V
OT
V
NT
V
FST
– V
OT
1022
V
(N+1)T
11 1111 1111
11 1111 1110
11 1111 1110
00 0000 0001
00 0000 0000
Linearity error =
(LSB)
V
NT
– (1 LSB
×
N + V
OT
)
1 LSB
Differential linearity error =
–1 (LSB)
V
(N+1)T
– V
NT
1 LSB
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