參數(shù)資料
型號: MB91F192PFF
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 32-bit Proprietary Microcontroller
中文描述: 32-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQFP120
封裝: PLASTIC, LQFP-120
文件頁數(shù): 28/33頁
文件大小: 435K
代理商: MB91F192PFF
MB
91191/192 Series
28
7.
A/D Converter Glossary
Resolution : The change in analog voltage that can be recognized by the A/D converter.
Linearity error
The deviation between the actual conversion characteristics and the line linking the zero transition point
(“00 0000 0000
B
←→
“00 0000 0001
B
”) and the full scale transition point (“11 1111 1110
B
←→
“11 1111
1111
B
”) .
Differential linearity error
The variation from the ideal input voltage required to change the output code by 1 LSB.
Total error
The total error is the difference between the actual value and the theoretical value.
Includes the zero transition error, full-scale transition error and linearity error.
1 LSB’ (Theoretical)
=
AV
Total error for digital output N
=
V
OT
’ (Theoretical)
=
AV
SS
+
0.5 LSB’ [V]
V
FST
’ (Theoretical)
=
AV
RH
1.5 LSB’ [V]
V
NT
: Voltage at which digital output changes from (N
+
1) to N
RH
AV
SS
1024
V
NT
{1 LSB’
×
(N
1)
+
0.5 LSB’}
1 LSB’
1.5 LSB’
D
3FF
3FE
3FD
004
003
002
001
AV
SS
0.5 LSB’
Theoretical characteristic
Actual conversion
characteristic
{1 LSB’
×
(N
1)
+
0.5 LSB’}
Actual conversion
characteristic
Total Error
AV
RH
Analog Input
V
NT
(Measured value)
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