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參數(shù)資料
| 型號： | MB90V420G |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-Bit Original Microcontroller |
| 中文描述： | 16位微控制器原件 |
| 文件頁數(shù)： | 73/99頁 |
| 文件大?。?/td> | 1706K |
| 代理商： | MB90V420G |
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MB90420G/5G (A) Series
73
5.
A/D Conversion Block
(1) Electrical Characteristics
(V
CC
=
AV
CC
=
5.0 V
±
10
%
, V
SS
=
AV
SS
=
0.0 V, T
A
=
40
°
C to
+
105
°
C)
Value
*1 : At F
CP
=
16 MHz, t
SMP
=
32
×
t
CP
=
2.000 (
μ
s) .
*2 : At F
CP
=
16 MHz, t
CMP
=
66
×
t
CP
=
4.125 (
μ
s) .
*3 : Equivalent to conversion time per channel at F
CP
=
16 MHz, and selection of t
SMP
=
32
×
t
CP
and t
CMP
=
32
×
t
CP
.
*4 : Defined as supply current (when V
CC
=
AV
CC
=
AVRH
=
5.0 V) with A/D converter not operating, and CPU in
stop mode.
Notes :
The relative error increases as AVRH is reduced.
The output impedance (rs) on the external analog input circuit should be used as follows.
External circuit output impedance rs
=
5 k
max.
If the output impedance on the external circuit is too great, the analog voltage sampling time may be
insufficient.
If DC inhibitor capacitance is placed between the external circuit and input pin, then a capacitance value
several thousand times the value of the chip internal sampling capacitance (CSH) should be selected in
order to suppress the effects of voltage division with CSH.
Parameter
Symbol
Pin name
Unit
Remarks
Min.
AV
SS
Typ.
AV
SS
Max.
Resolution
10
±
5.0
±
2.5
±
1.9
AV
SS
bit
Total error
LSB
Non-linear error
LSB
Differential linear error
LSB
Zero transition voltage
V
OT
AN0 to AN7
3.5 LSB
AVRH
6.5 LSB
2.000
+
0.5 LSB
AVRH
1.5 LSB
+
4.5 LSB
AVRH
+
1.5 LSB
V
1 LSB
=
(AVRH
AV
SS
)
/
1024
Full scale transition
voltage
V
FST
AN0 to AN7
V
Sampling time
t
SMP
μ
s
μ
s
μ
s
*1
Compare time
t
CMP
4.125
*2
A/D conversion time
t
CNV
6.125
*3
Analog port
input current
I
AIN
AN0 to AN7
10
μ
A
V
AVSS
=
V
AIN
=
V
AVCC
Analog input current
V
AIN
AVR
+
I
A
AN0 to AN7
0
2.3
400
AVRH
V
Reference voltage
AVRH
3.0
200
AV
CC
V
Power supply current
AV
CC
6.0
mA
μ
A
μ
A
μ
A
LSB
I
AH
5
*4
V
AVRH
=
5.0 V
*4
Reference voltage feed
current
I
R
AVRH
600
I
RH
AVRH
5
Inter-channel variation
—
AN0 to AN7
4
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