參數(shù)資料
型號(hào): MB91461PMC-GSE1
元件分類: 微控制器/微處理器
英文描述: RISC MICROCONTROLLER, PQFP176
封裝: 24 X 24 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-176
文件頁(yè)數(shù): 74/84頁(yè)
文件大?。?/td> 2114K
代理商: MB91461PMC-GSE1
MB91460 Series
76
DS07-16602-2E
(3) Definition of A/D converter terms
Resolution
Analog variation that is recognizable by an A/D converter.
Linearity error
Deviation between actual conversion characteristics and a straight line connecting zero transition point
(00 0000 0000
00 0000 0001) and full scale transition point (11 1111 1110 11 1111 1111).
Differential linearity error
Deviation of input voltage, which is required for changing output code by 1 LSB, from an ideal value.
Total error
This error indicates the difference between actual and theoretical values, including the zero transition error/
full scale transition error/linearity error.
3FFH
3FEH
3FDH
004H
003H
002H
001H
AVSS
(AVRL)
AVRH
0.5 LSB'
{1 LSB (N
1) + 0.5 LSB}
1.5 LSB
Analog input
Total error
Digit
al
ou
tp
ut
Actual conversion
characteristics
VNT
(measurement value)
Ideal characteristics
Actual conversion
characteristics
Total error of digital output N
=
1 LSB'
VNT
{1 LSB' × (N 1) + 0.5 LSB'}
N : A/D converter digital output value
VOT' (ideal value)
= AVSS + 0.5 LSB' [V]
VFST' (ideal value)
= AVRH 1.5 LSB' [V]
VNT : A voltage at which digital output transits from (N
+ 1) H to NH
1LSB' (ideal value)
=
1024
AVRH
AVSS
[V]
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