参数资料
型号: MB91F467TAPMC-GSE2
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP144
封装: 20 X 20 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-144
文件页数: 7/140页
文件大小: 4819K
代理商: MB91F467TAPMC-GSE2
MB91460T Series
104
DS705-00001-2v1-E
Definition of A/D converter terms
Resolution
Analog variation that is recognizable by the A/D converter.
Nonlinearity error
Deviation between actual conversion characteristics and a straight line connecting the zero transition point
(00 0000 0000B
00 0000 0001B) and the full scale transition point (11 1111 1110B 11 1111 1111B).
Differential nonlinearity error
Deviation of the input voltage from the ideal value that is required to change the output code by 1 LSB.
Total error
This error indicates the difference between actual and theoretical values, including the zero transition error,
full scale transition error, and nonlinearity error.
(Continued)
3FFH
3FEH
3FDH
004H
003H
002H
001H
AVSS5AVRH
0.5 LSB'
{1 LSB’ (N - 1) + 0.5 LSB’}
1.5 LSB’
Analog input
Total error
Digital
output
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)
= AVSS5 + 0.5 LSB' [V]
VFST' (ideal value)
= AVRH 1.5 LSB' [V]
VNT : Voltage at which the digital output changes from (N
+ 1) H to NH
1LSB' (ideal value)
=
1024
AVRH
AVSS5
[V]
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