參數(shù)資料
型號(hào): MB89W857CF-ES-BND
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 8-bit Proprietary Microcontroller
中文描述: 8-BIT, UVPROM, 10 MHz, MICROCONTROLLER, CQFP64
封裝: CERAMIC, QFP-64
文件頁數(shù): 34/48頁
文件大?。?/td> 677K
代理商: MB89W857CF-ES-BND
MB89850R Series
34
6. A/D Converter Glossary
Resolution
Analog changes that are identifiable with the A/D converter
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
Total error
The total error indicates the difference between the actual value and theoretical value. This error is caused by
the zero transition error, full-scale transition error, linearity error, quantization, and noise.
(Continued)
Actual conversion
value
3FF
3FE
3FD
004
003
002
001
V
OT
0.5 LSB
AV
SS
1 LSB
1.5 LSB
V
FST
AVR
3FF
3FE
3FD
004
003
002
001
Theoretical value
AV
SS
V
NT
AVR
(1 LSB
×
N + 0.5 LSB)
1 LSB =
1022
(V)
V
NT
– (1 LSB
×
N + 0.5 LSB)
1 LSB
D
D
Total error of digital output “N” =
V
FST
– V
OT
Theoretical I/O value
Analog input
Total error
Analog input
Actual conversion
value
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