參數(shù)資料
型號： MB90F549GPF
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-bit Proprietary Microcontroller
中文描述： 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 20 MM, 3.35 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù)： 51/56頁
文件大小： 757K
代理商： MB90F549GPF
MB90540/545 Series
51
6.
A/D Converter Glossary
Resolution: Analog changes that are identifiable with the A/D converter
Linearity 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 linearity error:The deviation of input voltage needed to change the output code by 1 LSB from the
theoretical value
Total error:The total error is defined as a difference between the actual value and the theoretical value, which
includes zero-transition error/full-scale transition error and linearity error.
(Continued)
Total error
3FF
3FE
3FD
004
003
002
001
Analog input
AVRL
AVRH
Actual conversion
value
D
V
(measured value)
Actual conversion
characteristics
0.5 LSB
Theoretical
characteristics
0.5 LSB
{1 LSB
×
(N – 1) + 0.5 LSB}
[V]
AVRH – AVRL
1024
1 LSB = (Theoretical value)
V
OT
(Theoretical value) = AVRL + 0.5 LSB[V]
V
FST
(Theoretical value) = AVRH – 1.5 LSB[V]
Total error for digital output N
[LSB]
V
NT
– {1 LSB
×
(N – 1) + 0.5 LSB}
1 LSB
=
V
NT
: Voltage at a transition of digital output from (N – 1) to N
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