參數(shù)資料
型號(hào): MB90580C
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16位微控制器專有
文件頁(yè)數(shù): 99/110頁(yè)
文件大?。?/td> 540K
代理商: MB90580C
MB90580C Series
99
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)
3FF
3FE
3FD
004
003
002
001
AVRL
AVRH
0.5 LSB
0.5 LSB
{1 LSB
×
(N
1)
+
0.5 LSB}
Total error
Actual conversion
value
Analog input
Total error for digital output N =
V
NT
{1 LSB
×
(N
1)
+
0.5 LSB}
1 LSB
AVRH
AVRL
1024
[LSB]
1 LSB
=
(Theoretical value)
[V]
V
OT
(Theoretical value)
=
AVRL
+
0.5 LSB [V]
V
FST
(Theoretical value)
=
AVRH
1.5 LSB [V]
V
NT
: Voltage at a transition of digital output from (N - 1) to N
Actual conversion
value
Theoretical
characteristics
(Measured value)
D
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