ICL71C03CPL View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ICL71C03CPL

Precision 4 1/2 Digit, A/D Converter

Intersil 

ICL8052/ICL71C03, ICL8068/ICL71C03

+5V

1 16 15 14 12 5 3 4

CD4054A

7 8 13 11 10 9 2 6

0V

INPUT

+5V

1 V+

ICL71C03

BUSY 28

-15V

1µF

100kΩ

0.1µF

2 41/2 / 31/2

D1 27

3 POL

D2 26

4 R/H

D3 25

5 COMP IN

D4 24

6 V-

B8 23

7 REF

B4 22

8 REF. CAP. 1

B2 21

9 REF. CAP. 2

B1 20

10 INPUT

D5 19

11 ANALOG GND STROBE 18

12 CLOCK

A-Z IN 17

13 UR

A-Z OUT 16

14 OR

DIG GND 15

0V

41/2 DIGIT LCD DISPLAY

28 SEGMENTS

D1 - D4

BACKPLANE

ICM7211A

5 BP

31 D1

32 D2

33 D3

34 D4

2, 3, 4

6 - 26

37 - 40

30 B3

29 B2

OPTIONAL

CAPACITOR

28 B1 OSC 36

+5V

27 B0

22-100pF

35 V-

0V

V+ 1

+5V

CLOCK IN (120kHz = 3 READINGS/SEC)

1.0µF

36kΩ

300kΩ

-15V

-15V 1

14

2

300µF

0.22µF

13

3 ICL8052 (A) 12

8068 (A)

4

11

5

10

100kΩ

6

9

5kΩ

7

8

+15V

10kΩ

10µF

ANALOG GND

FIGURE 10. DRIVING LCD DISPLAYS

3-47

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