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參數(shù)資料
| 型號(hào)： | MB91F492PMC-GE1 |
| 廠商： | FUJITSU LTD |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封裝： | 12 X 12 MM, 1.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, LQFP-64 |
| 文件頁(yè)數(shù)： | 49/60頁(yè) |
| 文件大?。?/td> | 1628K |
| 代理商： | MB91F492PMC-GE1 |
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MB91490 Series
DS07-16912-1E
53
Definition of 8/10-bit A/D Converter Terms
Resolution
: Analog variation that is recognized by the A/D converter.
Linearity error
: Deviation between the line connecting zero transition point
(0000000000
←→0000000001) and full-scale transition point
(1111111110
←→1111111111) and actual conversion characteristics.
Differential linear error : Deviation from the ideal value of input voltage necessary to change the output code
by ILSB.
Total Error
: This error is 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
AVRH2
AVSS
AVRH2
(N - 2)H
(N - 1)H
NH
(N
+ 1)H
Actual conversion
characteristic
VFST
(Measurement
value)
VNT
VOT
V(N+1)T
VNT
Actual conversion
characteristic
Actual conversion
characteristic
Actual conversion
characteristic
(Measurement
value)
(Measurement value)
(Measurement
value)
(Measurement value)
Ideal characteristic
{1 LSB (N - 1) + VOT}
Digital
output
Linearity error
Differential linear error
Digital
output
Analog input
N
: A/D converter digital output value
VOT
: Voltage at which digital output changes from 000H to 001H.
VFST : Voltage at which digital output changes from 3FEH to 3FFH.
VNT
: Voltage at which digital output changes from (N
1) H to NH.
Linear error in digital output N
=
VNT
{1 LSB × (N 1) + VOT}
[LSB]
1 LSB
Differential linear error in digital output N
=
V (N+1) T
VNT
1 [LSB]
1 LSB
=
VFST
VOT
1022
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