參數(shù)資料
型號(hào): MB90F244PFT-G
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 50 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, TQFP-80
文件頁(yè)數(shù): 37/67頁(yè)
文件大?。?/td> 1404K
代理商: MB90F244PFT-G
MB90F244
42
6. A/D Converter Glossary
Resolution
Analog changes that are identifiable with the A/D converter.
When the number of bits is 10, analog voltage can be divide into 210 .
Linearity error (unit: LSB)
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 linearity error
The deviation of input voltage needed to change the output code by 1 LSB from the theoretical value
Total error (unit: LSB)
The difference between theoretical and actual conversion values caused by the zero transition error, full-scale
transition error, non-linearity error, differential linearity error, and noise
Digital output
11 1111 1111
11 1111 1110
00 0000 0010
00 0000 0001
00 0000 0000
VOT
VNT
V(N + 1)T
VFST
Analog input
(1 LSB
× N + VOT)
Linearity error
1 LSB =
[V]
=
[LSB]
=
– 1 LSB [LSB]
VOT: Voltage for digital output transit from “000H” to “001H
VFST: Voltage for digital output transit from “3FEH” to “3FFH
1022
VFST – VOT
Digital output N
linearity error
1 LSB
VNT – (1 LSB
× N + VOT)
Digital output N
differential linearity error
1 LSB
V(N+1)T – VNT
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