参数资料
型号: MB90F387SPMT
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
封装: PLASTIC, LQFP-48
文件页数: 49/64页
文件大小: 1777K
代理商: MB90F387SPMT
MB91260B Series
DS07-16507-3E
53
Definition of A/D Converter Terms
Resolution : Analog variation that is recognized by an A/D converter.
Linearity error : Zero transition point (00 0000 0000
←→ 00 0000 0001) and full-scale transition point. Difference
between the line connected (11 1111 1110
←→ 11 1111 1111) and actual conversion characteristics.
Differential linearity error : Deviation of input voltage, that is required for changing output code by 1 LSB, from
an ideal value.
Total error : This error indicates the difference between actual and ideal values, including the zero transition
error/full-scale transition error/linearity error.
(Continued)
3FFH
3FEH
3FDH
004H
003H
002H
001H
AVSS
AVRH
0.5 LSB'
{1 LSB' (N
1) + 0.5 LSB'}
1.5 LSB'
Dig
ita
lout
pu
t
Analog input
Total error
Ideal characteristics
Actual conversion
characteristics
VNT
(measurement value)
Actual conversion
characteristics
1LSB’
(Ideal value)
=
AVRH
AVSS
[V] Total error of digital output N
=
VNT
{1 LSB’ × (N 1) + 0.5 LSB’}
1024
1 LSB’
VOT
(Ideal value)
= AVSS + 0.5 LSB’ [V]
VFST
(Ideal value)
= AVRH 1.5 LSB’ [V] VNT : A voltage at which digital output transitions from (N + 1) to N.
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