MC1403B ON Semiconductor, MC1403B Datasheet - Page 2

• Manufacturer Part Number: MC1403B
• Description: PRECISION LOW VOLTAGE REFERENCE
• Manufacturer: ON Semiconductor

+ 5.0 V
ELECTRICAL CHARACTERISTICS
*Guaranteed but not tested.
Output Voltage
Temperature Coefficient of Output Voltage*
Output Voltage Change*
Line Regulation (I
Load Regulation
Quiescent Current
(I
MC1403
(Over specified temperature range)
MC1403B
MC1403B −40 to + 85 C
(15 V p V
(4.5 V p V
(0 mA < I
(I
O
O
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.
Providing the Reference Current
for ON Semiconductor Monolithic D/A Converters
= 0 mA)
= 0 mA)
The MC1403 makes an ideal reference for many mono-
O
I
< 10 mA)
1
I
0 to + 70 C
p 15 V)
p 40 V)
O
MC1403
= 0 mA)
Characteristic
3
2
2.5 V
Figure 1. A Reference for Monolithic D/A Converters
1.0 k
R1
(V
in
*0.1 mF
C1
= 15 V, T
R2
A
= 25 C, unless otherwise noted.)
http://onsemi.com
MC1403, B
I
Ref
Full Scale
Adjust 500 W
1.2 k
R3
Symbol
DV
Reg
Reg
2
DV
V
I
O
out
Q
load
/DT
line
O
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.
current input for up to five of the monolithic D/A converters.
The resistor R3 improves temperature performance by
A single MC1403 reference can provide the required
* Caution: System stability may be affected if output capacitance
*
*
exceeds 1.0 mF. Using higher capacitance values is not
recommended and should be carefully considered.
Reference
Amplifier
2.475
Min
−
−
−
−
−
−
−
Typ
2.5
1.2
0.6
1.2
10
−
−
−
Monolithic D/A
Converter
2.525
Max
12.5
7.0
4.5
3.0
1.5
40
10
ppm/ C
Unit
mV
mV
mV
mA
V