參數(shù)資料
型號(hào)： MB91F158PMC1
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： RISC MICROCONTROLLER, PQFP120
封裝： 14 X 14 MM, 1.70 MM HEIGHT, 0.40 MM PITCH, PLASTIC, LQFP-120
文件頁(yè)數(shù)： 83/92頁(yè)
文件大小： 2193K
代理商： MB91F158PMC1
MB91F158 Series
84
DS07-16316-2E
A/D Converter Glossary
(Continued)
Resolution
: Analog changes that are identifiable by 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 one LSB
from the theoretical value.
Total error
: The difference between actual and theoretical conversion values including a
zero transition/full-scale transition/linearity error.
3FF
3FE
3FD
004
003
002
001
AVRL
AVRH
Analog input
0.5 LSB'
{1 LSB' ( N 1 ) + 0.5 LSB'}
1.5 LSB'
Theoretical characteristics
Actual conversion
characteristics
VNT
(Actual measurement)
Actual conversion
characteristics
Total error
Digit
a
lo
u
tp
u
t
Total error of digital output N
=
VNT
{1 LSB’ × (N 1) + 0.5 LSB’}
1 LSB’
1 LSB’ (theoretical value)
=
AVRH
AVRL
1024
[V]
VOT’ (theoretical value)
=
VNT : Voltage at which digital output changes from (N
+ 1) to N.
AVRL
+ 0.5 LSB’ [V]
VFST’ (theoretical value)
= AVRH 1.5 LSB’ [V]
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