參數(shù)資料
型號: MC80C52CXXX-20/883D
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, CDIP40
文件頁數(shù): 38/60頁
文件大小: 5137K
代理商: MC80C52CXXX-20/883D
MB89630R Series
DS07-12531-4E
43
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 1110”
“11 1111 1111”) 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 (unit: LSB)
The difference between theoretical and actual conversion values caused by the zero transition error, full-scale
transition error, linearity error, quantization error, and noise
(Continued)
0.5 LSB
1 LSB
Analog input
AVSS
1.5 LSB
Theoretical I/O characteristics
3FF
3FE
3FD
004
003
002
001
AVR
Theoretical value
Analog input
AVSS
VNT
Actual conversion
value
Total error
3FF
3FE
3FD
004
003
002
001
AVR
{1 LSB
× N + 0.5 LSB}
VFST
VOT
Actual conversion
value
Digital output N total error = VNT – {1 LSB × N + 0.5 LSB}
1 LSB
1 LSB =
VFST –VOT
1022
Digital
output
Digital
output
(V)
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