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MC1403 Datasheet(PDF) 1 Page - Motorola, Inc

Part No. MC1403
Description  Low Voltage Reference
Download  8 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC1403 Datasheet(HTML) 1 Page - Motorola, Inc

   
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MC1403, B
SEMICONDUCTOR
TECHNICAL DATA
PRECISION LOW VOLTAGE
REFERENCE
ORDERING INFORMATION
Order this document by MC1403/D
P1 SUFFIX
PLASTIC PACKAGE
CASE 626
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
NC
NC
NC
NC
8
1
3
Vout
Gnd
4
2
NC
7
Vin
6
5
8
1
8
1
Device
Operating
Temperature Range
Package
MC1403D
MC1403P1
MC1403BD
MC1403BP1
TA = 0° to +70°C
Plastic DIP
SO–8
SO–8
Plastic DIP
TA = – 40° to +85°C
PIN CONNECTIONS
1
MOTOROLA ANALOG IC DEVICE DATA
Low Voltage Reference
A precision band–gap voltage reference designed for critical
instrumentation and D/A converter applications. This unit is designed to work
with D/A converters, up to 12 bits in accuracy, or as a reference for power
supply applications.
Output Voltage: 2.5 V "25 mV
Input Voltage Range: 4.5 V to 40 V
Quiescent Current: 1.2 mA Typical
Output Current: 10 mA
Temperature Coefficient: 10 ppm/°C Typical
Guaranteed Temperature Drift Specification
Equivalent to AD580
Standard 8–Pin DIP, and 8–Pin SOIC Package
Typical Applications
Voltage Reference for 8 to 12 Bit D/A Converters
Low TC Zener Replacement
High Stability Current Reference
Voltmeter System Reference
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating
Symbol
Value
Unit
Input Voltage
VI
40
V
Storage Temperature
Tstg
– 65 to 150
°C
Junction Temperature
TJ
+175
°C
Operating Ambient Temperature Range
MC1403B
MC1403
TA
– 40 to +85
0 to + 70
°C
°C
Figure 1. A Reference for Monolithic D/A Converters
* Caution: System stability may be affected if output capacitance
* exceeds 1.0
µF. 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
IRef
Full Scale
Adjust 500
Monolithic D/A
Converter
*0.1
µF
C1
R2
R1
Reference
Amplifier
Providing the Reference Current
for Motorola 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.
2.5 V
© Motorola, Inc. 1996
Rev 1


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