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參數(shù)資料
| 型號： | MB90P623A |
| 廠商： | Fujitsu Limited |
| 英文描述： | 16-bit Proprietary Microcontroller |
| 中文描述： | 16位微控制器專有 |
| 文件頁數(shù)： | 55/80頁 |
| 文件大?。?/td> | 1304K |
| 代理商： | MB90P623A |
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55
MB90620A Series
5. A/D Converter Electrical Characteristics
(AV
CC
= V
CC
= +2.7 V to 5.5 V, AV
SS
= V
SS
= 0.0 V, +2.7 V
≤
AVRH – AVRL, T
A
= –40
°
C to +85
°
C)
* :Current when the A/D converter is not operating and the CPU is stopped (when V
CC
= AV
CC
= AVRH = +5.5 V)
Notes:
The smaller | AVRH – AVRL |, the greater the error would become relatively.
The output impedance of the external circuit for the analog input must satisfy the following conditions:
The output impedance of the external circuit should be less than approximately 7 k
.
If the output impedance of the external circuit is too high, an analog voltage sampling time might be
insufficient (sampling time = 5
μ
s @ at a machine clock of 12 MHz).
Parameter
Sym-
bol
Pin name
Value
Typ.
10
—
—
—
+0.5
AVRL – 1.5
—
—
—
—
—
5
—
200
—
—
Unit
Min.
—
—
—
—
–1.5
Max.
10
±
3.0
±
1.5
±
1.5
+2.5
Resolution
Total error
Linearity error
Differential linearity error
Zero transition voltage
Full-scale transition voltage
Conversion time
Analog port input current
Analog input voltage
—
—
—
—
V
OT
V
FST
—
I
AIN
V
AIN
—
—
I
A
I
AH
I
R
I
RH
—
—
—
—
—
bit
LSB
LSB
LSB
LSB
LSB
μ
s
μ
A
V
V
V
mA
μ
A
μ
A
μ
A
LSB
AN0 to AN3
AN0 to AN3
—
AN0 to AN3
AN0 to AN3
AVRH
AVRL
AV
CC
AV
CC
AV
CC
AV
CC
AN0 to AN3
AVRH – 3.5
8.16
—
AVRL
AVRL
—
—
—
—
—
—
AVRH + 0.5
—
10
AVRH
AV
CC
AVRH
—
5*
—
5*
4
Reference voltage
Power supply current
Reference voltage supply current
Interchannel disparity
Comparator
Analog input
R
ON0
R
ON1
C
1
C
0
R
ON0
= Approx. 1.5 k
(5.0 V)
R
ON1
= Approx. 1.0 k
(5.0 V)
C
0
= Approx. 60 pF (5.0 V)
C
1
= Approx. 4 pF (5.0 V)
Analog Input Circuit Model Diagram
Note: Use the values shown as guides only.
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