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參數(shù)資料
| 型號： | MC1403 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Low Voltage Reference(低電壓參考源) |
| 中文描述： | 低電壓參考（低電壓參考源） |
| 文件頁數(shù)： | 2/8頁 |
| 文件大小： | 88K |
| 代理商： | MC1403 |
MC1403, B
http://onsemi.com
2
Figure 1. A Reference for Monolithic D/A Converters
* Caution: System stability may be affected if output capacitance
*
exceeds 1.0 F. Using higher capacitance values is not
*
recommended and should be carefully considered.
MC1403
1.0 k
3
2
1
+5.0 V
1.2 k
R3
I
Ref
Full Scale
Adjust 500
Monolithic D/A
Converter
*0.1 F
C1
R2
R1
Reference
Amplifier
Providing the Reference Current
for ON Semiconductor Monolithic D/A Converters
The MC1403 makes an ideal reference for many mono-
lithic D/A converters, requiring a stable current reference of
nominally 2.0 mA. This can be easily obtained from the
MC1403 with the addition of a series resistor, R1. A variable
resistor, R2, is recommended to provide means for full
scale adjust on the D/A converter.
The resistor R3 improves temperature performance by
matching the impedance on both inputs of the D/A reference
amplifier. The capacitor decouples any noise present on the
reference line. It is essential if the D/A converter is located
any appreciable distance from the reference.
A single MC1403 reference can provide the required
current input for up to five of the monolithic D/A converters.
2.5V
ELECTRICAL CHARACTERISTICS
(V
in
= 15 V, T
A
= 25
°
C, unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage
(I
O
= 0 mA)
Temperature Coefficient of Output Voltage*
MC1403
V
out
2.475
2.5
2.525
V
V
O
/ T
10
40
ppm/
°
C
Output Voltage Change*
(Over specified temperature range)
MC1403
B
0 to +70
°
C
MC1403B
40 to +85
°
C
V
O
mV
7.0
12.5
Line Regulation (I
O
= 0 mA)
(15 V
V
I
(4.5 V
V
I
Reg
line
mV
40 V)
15 V)
1.2
0.6
4.5
3.0
Load Regulation
(0 mA < I
O
< 10 mA)
Quiescent Current
(I
O
= 0 mA)
Reg
load
10
mV
I
Q
1.2
1.5
mA
*Guaranteed but not tested.
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| MC1403_02 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2.5V PRECISION SERIAL VOLTAGE REFERENCE |
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