MOTOROLA MC1403BP1, MC1403DR2, MC1403BDR2 Datasheet

Order this document by MC1403/D

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  

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

• 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

T ypical Applications

• Voltage Reference for 8 to 12 Bit D/A Converters

• Low T

Zener Replacement

C

• High Stability Current Reference

• Voltmeter System Reference

MAXIMUM RATINGS

Input Voltage V
Storage Temperature T
Junction Temperature T
Operating Ambient Temperature Range

MC1403B
MC1403

"

25 mV

(TA = 25°C, unless otherwise noted.)

Rating

Symbol Value Unit

40 V

–65 to 150 °C

+175 °C

–40 to +85

0 to +70

°C
°C

T

I

stg

J

A

PRECISION LOW VOLTAGE

REFERENCE

SEMICONDUCTOR

TECHNICAL DATA

P1 SUFFIX

PLASTIC PACKAGE

8

1

8

ORDERING INFORMATION

Device

MC1403D
MC1403P1
MC1403BD
MC1403BP1

1

PIN CONNECTIONS

1

V

in

2

V

out

3

Gnd

4

NC

Temperature Range

TA = 0° to +70°C

TA = –40° to +85°C

CASE 626

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

7
6
5

Operating

NC8
NC
NC

NC

Package

SO–8

Plastic DIP

SO–8

Plastic DIP

Figure 1. A Reference for Monolithic D/A Converters

2.5 V

1

+5.0 V

Providing the Reference Current
for Motorola Monolithic D/A Converters

The MC1403 makes an ideal reference for many mono­lithic 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.

MC1403

2

3

1.0 k

*0.1
C1

MOTOROLA ANALOG IC DEVICE DATA

Full Scale
Adjust 500

R2R1

µ

F

I

Ref

Ω

Reference
Amplifier

1.2 k
R3

* 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.

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.

 Motorola, Inc. 1996 Rev 1

Monolithic D/A

Converter

1

MC1403, B

ELECTRICAL CHARACTERISTICS

Characteristic

Output Voltage V

(IO = 0 mA)

Temperature Coefficient of Output Voltage* ∆VO/∆T – 10 40 ppm/°C

MC1403

Output Voltage Change* ∆V

(Over specified temperature range)
MC1403B 0 to +70°C
MC1403B –40 to +85°C

Line Regulation (IO = 0 mA) Reg

(15 V  VI  40 V)
(4.5 V  VI  15 V)

Load Regulation Reg

(0 mA < IO < 10 mA)

Quiescent Current I

(IO = 0 mA)

*Guaranteed but not tested.

(Vin = 15 V, TA = 25°C, unless otherwise noted.)

Symbol Min Typ Max Unit

out

O

line

load

Q

2.475 2.5 2.525 V

–
–

–
–

– – 10 mV

– 1.2 1.5 mA

1.2

0.6

mV

–
–

7.0

12.5
mV

4.5

3.0

Figure 2. MC1403, B Schematic

V

in

2.37 k

1.0 k

5.61 k

2.0 k

1.73 k

1.0 k2.0 k

C1
30 pF

2.0 k2.0 k

32

V

out

1.5 k

1.483 k10 k

This device contains 15 active transistors.

2

MOTOROLA ANALOG IC DEVICE DATA

MC1403, B

Figure 3. T ypical Change in V

(Normalized to Vin = 15 V @ TC = 25°C)

2.0

1.0

(mV)

0

out

–1.0
–2.0
–3.0
–4.0

out

V , CHANGE IN V

∆

–5.0
–6.0

01020304050

Vin, INPUT VOLTAGE (V)

versus V

out

in

25°C

0°C

75°C

Figure 4. Change in Output Voltage

versus Load Current

(Normalized to V

10

9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.0

, CHANGE IN OUTPUT VOLTAGE (mV)

1.0

out

V

∆

0

0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10

I

out

@ Vin = 15 V, I

out

, OUTPUT CURRENT (mA)

= 0 mA)

out

75°C

0°C
25°C

Figure 5. Quiescent Current versus T emperature

1.25

1.20

1.15

1.10

1.05

1.00

0.95

, QUIESCENT CURRENT (mA)

1

I

0.90

(Vin = 15 V, I

0

TA, TEMPERATURE (°C)

= 0 mA)

out

Figure 7. Change in V

(Normalized to TA = 25°C, Vin = 15 V, I

4.0

2.0

(mV)

0

out

–2.0
–4.0
–6.0
–8.0

out

V , CHANGE IN V

∆

–10
–12

(mV)

out

out

V , CHANGE IN V

∆

806040200–40 –20

8570503010–10–30

out

TA, TEMPERATURE (

Figure 6. Change in V

(Normalized to V

0
–2.0
–4.0
–6.0
–8.0

–10
–12
–14

versus T emperature

= 0 mA)

out

IO = 0 mA

= 8.0 mA

°

C)

= 2.0 mA

= 5.0 mA

70503010–10–30

versus T emperature

out

@ Vin = 15 V)

out

Vin = 15 V

Vin = 5.0 V

TA, TEMPERATURE (

85

806040200–40 –20

I

= 2 mA

out

806040200–40 –20 8570503010–10–30

°

C)

MOTOROLA ANALOG IC DEVICE DATA

3

MC1403, B

3–1/2–Digit Voltmeter – Common Anode
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

199.9 mV or 1.999 V. When switching from 2.0 V to 200 mV
operation, RI is also changed, as shown on the diagram.

When using RC equal to 300 kΩ, the clock frequency for
the system is about 66 kHz. The resulting conversion time is
approximately 250 ms.

When the input is overrange, the display flashes on and
off. The flashing rate is one–half the conversion rate. This is

Figure 8. 3–1/2–Digit V oltmeter

+5.0 V

0.1µF

V

X

* RI = 470 k
RI = 27 k
** Mylar Capacitor

MC1403

1

0.1 µF **

0.1

Ω

Ω

for 200 mV Range

2

3

RI *

for 2.0 V Range

0.1

300 k

µ

F

R

3
1

4
5
6

7
8

µ

F

C

20 k

21011

MC14433

19

DS1

DS2

12

DS3

24

16171815

DS4

23
22
21

20

13

9

14

0.1

µ

F

+5.0 V

–5.0 V

–5.0 V

–5.0 V

0.1

–5.0 V –5.0 V

5

D

3

CQ

4

9

D

11

C

710

done by dividing the EOC pulse rate by 2 with 1/2 MC14013B
flip–flop and blanking the display using the blanking input of
the MC14543B.

The display uses an LED display with common anode digit
lines driven with an MC14543B decoder and an MC1413
LED driver. The MC1413 contains 7 Darlington transistor
drivers and resistors to drive the segments of the display . The
digit drive is provided by four MPS–A12 Darlington
transistors operating in an emitter–follower configuration.
The MC14543B, MC14013B and LED displays are
referenced to VEE via Pin 13 of the MC14433. This places the
full power supply voltage across the display. The current for
the display may be adjusted by the value of the segment
resistors shown as 150 Ω in Figure 8.

+5.0 V +5.0 V

µ

F

6

S
R

S
R

4
2
3

5

8

5.0 V

Q

13

Q

12

Q

14

161

9
10
11

12
13

MC14543B

14
15

6

7

1

2

MC14013B

8

+5.0 V

7
6
5

4
3
2
1

–5.0 V

–5.0 V

50 µF

–5.0 V

MC1413

MPS–A12

51 k

+5.0 V

Segment Resistors

150
10
11
12
13
14
15
16

Minus Sign

200
Plus Sign

110

Common
Anode
LED
Display

µ

F

0.1

Ω

(7)

Ω

Ω

bacdegf

MPS–A12

(4)

4

MOTOROLA ANALOG IC DEVICE DATA

NOTE 2

–T–

SEATING
PLANE

H

58

–B–

14

F

–A–

C

N

D

K

G

0.13 (0.005) B

M

T

MC1403, B

OUTLINE DIMENSIONS

P1 SUFFIX

PLASTIC PACKAGE

CASE 626–05

ISSUE K

L

J

M

M

A

M

NOTES:

1. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.

2. PACKAGE CONTOUR OPTIONAL (ROUND OR
SQUARE CORNERS).

3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

DIM MIN MAX MIN MAX

A 9.40 10.16 0.370 0.400
B 6.10 6.60 0.240 0.260
C 3.94 4.45 0.155 0.175
D 0.38 0.51 0.015 0.020
F 1.02 1.78 0.040 0.070
G 2.54 BSC 0.100 BSC
H 0.76 1.27 0.030 0.050
J 0.20 0.30 0.008 0.012
K 2.92 3.43 0.115 0.135
L 7.62 BSC 0.300 BSC
M ––– 10 ––– 10
N 0.76 1.01 0.030 0.040

INCHESMILLIMETERS

__

–T–

–A–

58

4X P

–B–

14

G

C

SEATING
PLANE

8X D

K

0.25 (0.010)MB

SS

A0.25 (0.010)MTB

D SUFFIX

PLASTIC PACKAGE

CASE 751–05

ISSUE N

M

R

X 45

_

M

(SO–8)

_

NOTES:

1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.

5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

DIM MIN MAX MIN MAX

F

J

A 4.80 5.00 0.189 0.196
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019
F 0.40 1.25 0.016 0.049
G 1.27 BSC 0.050 BSC
J 0.18 0.25 0.007 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7
P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019

INCHESMILLIMETERS

____

MOTOROLA ANALOG IC DEVICE DATA

5

MC1403, B

NOTES

6

MOTOROLA ANALOG IC DEVICE DATA

MC1403, B

NOTES

MOTOROLA ANALOG IC DEVICE DATA

7

MC1403, B

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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
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MOTOROLA ANALOG IC DEVICE DATA

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MC1403/D