參數(shù)資料
型號: MB91314APMC-GE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 33 MHz, RISC MICROCONTROLLER, PQFP120
封裝: 16 X 16 MM, 1.70 MM HEIGHT, 0.50 MM PITCH, PLASTIC, LQFP-120
文件頁數(shù): 65/73頁
文件大?。?/td> 810K
代理商: MB91314APMC-GE1
MB91314A Series
68
(2) Definition of terms
Resolution
: Analog variation that is recognized by an A/D converter.
Linearity error
: The deviation between the actual conversion characteristics and a straight line
connecting the device's zero transition point (“0000000000”
←→ “0000000001”) and
full scale transition point (“1111111110”
←→ “1111111111”).
Differential linear error : Deviation of input voltage, which 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
3FFH
3FEH
3FDH
004H
003H
002H
001H
AVSS
AVRH
{1 LSB' (N
1) + VOT}
VNT
VFST
VOT
(N
1)H
AVSS
AVRH
(N
2)H
NH
(N
+ 1)H
VNT
V(N + 1)T
Linearity error
Differential linearity error
Digital
output
Digital
output
Actual conversion characteristics
(measure-
ment value)
(measurement
value)
Actual conversion
characteristics
Ideal characteristics
(measurement value)
Analog input
Ideal characteristics
Actual conversion characteristics
N
: A/D converter digital output value
VOT : A voltage at which digital output transits from (000) H to (001) H
VFST : A voltage at which digital output transits from (3FE) H to (3FF) H
VNT : A voltage at which digital output transitions 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'
1 LSB
=
VFST
VOT
[V]
1022
Actual conversion
characteristics
(measurement
value)
(measure-
ment value)
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