參數(shù)資料
型號: MB90F922NCSPMC
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP120
封裝: 16 X 16 MM, 1.70 MM HEIGHT, 0.50 M PITCH, PLASTIC, LQFP-120
文件頁數(shù): 61/72頁
文件大?。?/td> 2151K
代理商: MB90F922NCSPMC
MB90920 Series
64
DS07-13750-3E
(2) Definition of terms
(Continued)
Resolution
: Analog changes that are identifiable by the A/D converter.
Non-Linear 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 linear
error
: The deviation from the ideal value of the input voltage needed to change the output code by
1 LSB.
Total error
: The total error is the difference between the actual value and the theoretical value,
and includes zero-transition error/full-scale transition error and linear error.
Total error
Actual conversion
value
Analog input
Total error for digital output N =
VNT
{1 LSB × (N 1) + 0.5 LSB}
1 LSB
[LSB]
1 LSB (Ideal)
= AVRH AVSS
1024
[V]
VOT (Ideal)
= AVss + 0.5 LSB [V]
VFST (Ideal)
= AVRH 1.5 LSB [V]
VNT : Voltage when the digital output changes from (N - 1)H to NH
Actual conversion
value
Ideal
characteristics
(Measured value)
Digital
output
AVSS
AVRH
3FFH
3FEH
3FDH
004H
003H
002H
001H
1.5 LSB
VNT
{1 LSB x (N - 1) + 0.5 LSB}
0.5 LSB
N : A/D converter digital output value
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