參數(shù)資料
型號： M37280MFH-XXXSP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64
封裝： 0.750 INCH, PLASTIC, SDIP-64
文件頁數(shù)： 121/171頁
文件大?。?/td> 1465K
代理商： M37280MFH-XXXSP
53
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37280MFH–XXXSP, M37280MKH–XXXSP
M37280EKSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
[LSB]
8.8.8 Definition of A-D Conversion Accuracy
The definition of A-D conversion accuracy is described below (refer
to Figure 8.8.4).
(1) Relative Accuracy
Zero transition error (V0T)
The deviation of the input voltage at which A-D conversion output
data changes from “0” to “1,” from the corresponding ideal A-D
conversion characteristics between 0 and VREF.
Non-linearity error
The deviation of the actual A-D conversion characteristics, from the
ideal A-D conversion characteristics between V0 and V254.
(V0 – 1/2 VREF/256)
1LSB
V0T =
(VREF – 3/2 VREF/256) – V254
1LSB
VFST =
Non-linearity error =
[LSB]
EDifferential non-linearity error
The deviation of the input voltage required to change output data
by “1,” from the corresponding ideal A-D conversion characteris-
tics between 0 and VREF.
(2) Absolute Accuracy
EAbsolute accuracy error
The deviation of the actual A-D conversion characteristics, from the
ideal A-D conversion characteristics between 0 and VREF.
Vn – (1LSB n + V0)
1LSB
[LSB]
Differential non-linearity error =
(Vn+1 – Vn) – 1LSB
1LSB
Absolute accuracy error =
1LSBA with respect to absolute accuracy =
1LSB with respect to relative accuracy =
Note: The analog input voltage “Vn” at which A-D conversion output data
changes from “n” to “n + 1” (n ; 0 to 254) is as follows (refer to Figure
8.8.4) :
V254 – V0
254
VREF
256
[V]
Fig. 8.8.4 Definition of A-D Conversion Accuracy
Full-scale transition error (VFST)
The deviation of the input voltage at which A-D conversion output
data changes from “255” to “254,” from the corresponding ideal A-
D conversion characteristics between 0 and VREF.
Vn – 1LSBA (n + 1/2)
1LSBA
Output code
0
Analog input voltage (mV)
20
40
80
100
120
140
160
180
200
220
0016
0116
0216
0316
0416
0516
0616
0716
0816
0916
+ 2LSB
– 2LSB
60
Absolute accuracy
Limitless resolution A-D
conversion characteristics
Ideal A-D conversion
characteristics
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37280MF-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280MK 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280MK-103SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280MK-104SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
M37280MK-114SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER
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