參數(shù)資料
型號(hào)： MB90F345CES
廠商： Fujitsu Limited
英文描述： 16-bit Microcontroller
中文描述： 16位微控制器
文件頁(yè)數(shù)： 66/84頁(yè)
文件大小： 1098K
代理商： MB90F345CES
MB90340E Series
66
6.
Definition of A/D Converter Terms
Resolution
: Analog variation that is recognized by the A/D converter.
Non linearity
error
zero-transition line ( “00 0000 0000”
←
→
“00 0000 0001” ) to the full-scale transition line
( “11 1111 1110”
←
→
“11 1111 1111” ) .
Differential
linearity error
ideal value.
Total error
: Difference between the actual value and the ideal value. The total error includes zero
transition error, full-scale transition error, and linear error.
(Continued)
: The deviation between the actual conversion characteristics and a line that joins the
: Deviation of input voltage, which is required for changing output code by 1 LSB, from an
3FF
H
3FE
H
3FD
H
004
H
003
H
002
H
001
H
AVRL
AVRH
V
NT
(Actually-measured value)
1.5 LSB
0.5 LSB
{1 LSB
×
(N
1)
+
0.5 LSB}
Actual conversion
characteristics
Actual conversion
characteristics
Ideal characteristics
Analog input
Total error
Total error of digital output “N”
=
V
NT
{1 LSB
×
(N
1)
+
0.5 LSB}
1 LSB
[LSB]
1 LSB (Ideal value)
=
AVRH
AVRL
1024
[V]
V
OT
(Ideal value)
=
AVRL
+
0.5 LSB [V]
V
FST
(Ideal value)
=
AVRH
1.5 LSB [V]
V
NT
: A voltage at which the digital output transitions from (N
1)
H
to N
H
.
N : Value of the digital output from the A/D converter
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