參數(shù)資料
型號： MB90F377
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)： 132/140頁
文件大小： 650K
代理商： MB90F377
MB90370/375 Series
132
7.
Notes on Using A/D Converter
Select the output impedance value for the external circuit of analog input according to the following conditions.
Output impedance values of the external circuit of 4 k
or lower are recommended.
When capacitors are connected to external pins, the capacitance of several thousand times the internal capacitor
value is recommended to minimized the effect of voltage distribution between the external capacitor and internal
capacitor.
When the output impedance of the external circuit is too high, the sampling period for analog voltages may not
be sufficient.
Error
The smaller the | AVR - AV
SS
| is, the greater the error would become relatively.
8.
D/A Electrical Characteristics
(V
CC
=
AV
CC
=
CV
CC
=
3.0 V to 3.6V, V
SS
=
AV
SS
=
CV
SS
=
0.0 V, T
A
=
40
°
C to
+
85
°
C)
* : With load capacitance is 20 pF.
Parameter
Symbol Pin name
Condition
Value
Unit
Remarks
Min
2.0
Typ
Max
±
0.9
±
1.5
3.8
Resolution
I
DVR
8
0.6
bit
Differential linearity error
LSB
Non-linearity error
LSB
μ
s
k
μ
A
μ
A
Conversion time
*
Analog output impedance
2.9
0.1
Power supply
AV
CC
460
Current
I
DVRS
AV
CC
D/A stops
C
Comparator
Analog input
R
Sampling and hold circuit
Equipment of analog input circuit model
R : about 1.9 k
C : about 32.3 pF
Note : Listed values must be considered as standards.
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