MC1403 Motorola, MC1403 Datasheet

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MC1403

Manufacturer Part Number
MC1403
Description
Manufacturer
Motorola
Datasheet

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Low Voltage Reference
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.
Typical Applications
MAXIMUM RATINGS
MOTOROLA ANALOG IC DEVICE DATA
Input Voltage
Storage Temperature
Junction Temperature
Operating Ambient Temperature Range
+ 5.0 V
A precision band–gap voltage reference designed for critical
Output Voltage: 2.5 V
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
Voltage Reference for 8 to 12 Bit D/A Converters
Low T C Zener Replacement
High Stability Current Reference
Voltmeter System Reference
MC1403B
MC1403
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 Motorola Monolithic D/A Converters
The MC1403 makes an ideal reference for many mono-
1
Rating
MC1403
(T A = 25 C, unless otherwise noted.)
3
"
25 mV
2
2.5 V
Figure 1. A Reference for Monolithic D/A Converters
1.0 k
R1
*0.1 F
Symbol
C1
T stg
T A
T J
V I
R2
– 65 to 150
– 40 to +85
0 to + 70
Value
+175
I Ref
40
Full Scale
Adjust 500
1.2 k
R3
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
Unit
* Caution: System stability may be affected if output capacitance
*
*
V
C
C
C
C
exceeds 1.0 F. Using higher capacitance values is not
recommended and should be carefully considered.
Reference
Amplifier
MC1403D
MC1403P1
MC1403BD
MC1403BP1
Motorola, Inc. 1996
Device
PRECISION LOW VOLTAGE
8
8
ORDERING INFORMATION
1
MC1403, B
V out
Gnd
1
V in
NC
PIN CONNECTIONS
SEMICONDUCTOR
TECHNICAL DATA
REFERENCE
Temperature Range
Order this document by MC1403/D
T A = – 40 to +85 C
1
2
3
4
T A = 0 to +70 C
Operating
Monolithic D/A
PLASTIC PACKAGE
PLASTIC PACKAGE
Converter
P1 SUFFIX
CASE 626
CASE 751
D SUFFIX
(SO–8)
8
7
6
5
NC
NC
NC
NC
Plastic DIP
Plastic DIP
Package
SO–8
SO–8
Rev 1
1

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MC1403 Summary of contents

Page 1

... 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. ...

Page 2

... Line Regulation ( Load Regulation (0 mA < < 10 mA) Quiescent Current ( mA) * This test is not applicable to the MC1403D or MC1403BD surface mount devices. 2.0 k 2.0 k 1.73 k 2.37 k 1 MC1403, B Symbol Min V out 2.475 – ...

Page 3

... TEMPERATURE ( C) 4.0 2.0 0 –2.0 –4.0 –6.0 –8.0 –10 –12 –40 MOTOROLA ANALOG IC DEVICE DATA MC1403, B Figure 4. Change in Output Voltage (Normalized to V out @ out = 0 mA 8.0 7 6.0 5 4.0 3.0 2.0 1 1.0 2.0 Figure 6. Change in V out versus Temperature 0 – ...

Page 4

... Displays, Flashing Overrange An example of a 3–1/2–digit voltmeter using the MC14433 is shown in the circuit diagram of Figure 8. The reference voltage for the system uses an MC1403 2.5 V reference IC. The full scale potentiometer can calibrate for a full scale of 199 1.999 V. When switching from 2 200 mV operation also changed, as shown on the diagram ...

Page 5

... G C SEATING –T– PLANE 0.25 (0.010 MOTOROLA ANALOG IC DEVICE DATA MC1403, B OUTLINE DIMENSIONS P1 SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K NOTES SUFFIX PLASTIC PACKAGE CASE 751–05 (SO–8) ...

Page 6

... MC1403, B NOTES MOTOROLA ANALOG IC DEVICE DATA ...

Page 7

... MOTOROLA ANALOG IC DEVICE DATA MC1403, B NOTES 7 ...

Page 8

... MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com 8 MC1403, B are registered trademarks of Motorola, Inc. Motorola, Inc Equal JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd. ...

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