參數(shù)資料
型號： MB90F548GLSPF
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 53/67頁
文件大小： 746K
代理商： MB90F548GLSPF
MB90540/540G/545/545G Series
57
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 : The total error is defined as a difference between the actual value and the theoretical value, which
includes zero-transition error/full-scale transition error and linearity error.
(Continued)
3FF
3FE
3FD
004
003
002
001
AVRL
AVRH
VNT
0.5 LSB
{1 LSB
× (N 1) + 0.5 LSB}
Analog input
Digital
output
Total error
Actual conversion
Value
Actual conversion
characteristics
(measured value)
Theoretical
characteristics
[V]
AVRH
AVRL
1024
1 LSB
= (Theoretical value)
VOT (Theoretical value)
= AVRL + 0.5 LSB [V]
VFST (Theoretical value)
= AVRH 1.5 LSB [V]
Total error for digital output N
=
[LSB]
VNT
{1 LSB × (N 1) + 0.5 LSB}
1 LSB
VNT : Voltage at a transition of digital output from (N
1) to N
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