參數(shù)資料
型號： MB90443GPF
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, QFP-100
文件頁數(shù)： 50/64頁
文件大小： 1375K
代理商： MB90443GPF
MB90440G Series
54
DS07-13716-3E
A/D Converter Glossary
(Continued)
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” to “00 0000 0001” ) with the full-scale transition point
( “11 1111 1110” to “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 difference between the actual value and the theoretical value, which includes
zero-transition error/full-scale transition error, and linearity error.
3FF
3FE
3FD
004
003
002
001
AVRL
AVRH
VNT
1.5 LSB
0.5 LSB
{1 LSB
× (N 1) + 0.5 LSB}
Actual conversion
characteristics
(measured value)
Actual conversion
characteristics
Theoretical characteristics
Digital
output
Analog input
Total error
Total error of digital output N
=
VNT
{1 LSB x (N 1) + 0.5 LSB}
1 LSB
[LSB]
1 LSB
= (theoretical value) AVRH AVRL
1024
[V]
VOT (theoretical value)
= AVRL + 0.5 LSB [V]
VFST (theoretical value)
= AVRH 1.5 LSB [V]
VNT : The voltage at a transition of digital output from (N
1) to N.
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