ICL8052/ICL71C03 데이터 시트보기 (PDF) - Intersil

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ICL8052/ICL71C03

Precision 4 1/2 Digit, A/D Converter

Intersil 

ICL8052/ICL71C03, ICL8068/ICL71C03

5

150Ω

4.7kΩ

150Ω

ICL71C03

10kΩ

SIGNAL

INPUT

0.1µF

CLOCK

IN

+5V

1 V+

2 41/2 / 31/2

3 POLARITY

4 RUN/HOLD

5 COMP IN

-15V

6 V-

7 REFERENCE

10µF

8 REF. CAP. 1

9 REF. CAP. 2

10 ANALOG IN

11 ANALOG GND

BUSY 28

(LSD) D1 27

D2 26

D3 25

D4 24

(MSB) B8 23

B4 22

B2 21

(LSB) B1 20

(MSD) D5 19

STROBE 18

12 CLOCK IN

A-Z IN 17

13 UNDER-RANGE A-Z OUT 16

14 OVER-RANGE DIGITAL GND 15

120kHz = 3

READINGS/SEC

NOTE: For 31/2 digit, tie pin 2 low and change clock to 12kHz.

+5V

4

3

2

1

150Ω

7447

a

b

c

B1

d B2

e B3

f B4

g RBI

47kΩ

ICL8068

-15V 1 V-

INT OUT 14

2 COMP OUT +BUFF IN 13

300µF

36

3 REF CAP

+INT IN 12

kΩ

10

kΩ

10µF

300

kΩ

1kΩ

4 REF BYPASS -INT IN 11

5 GND

-BUFF IN 10

6 REF OUT BUFF OUT 9

7 REF SUPPLY

V++ 8

-15V

1.0µF

0.22µF

100

kΩ

90kΩ

10kΩ

+15V

FIGURE 7. ICL8052A (8068A)/71C03A 41/2 DIGIT A/D CONVERTER

POL

+5V

5kΩ

a

a

V+

g

HI VOLTAGE BUFFER DI 505

47kΩ

0.02µF

DM8880

PROG

g

RBI BI D

A

+5V

3kΩ

0V

2.5kΩ

GATES

ARE

7409

0.02

µF 0.02

µF 0.02

µF

0.02

µF

POL D5 D4 D3 D2 D1

B8

8052A/

8068A

71C03A

B4

B2

B1

FIGURE 8. ICL8052-8068/71C03A PLASMA DISPLAY CIRCUIT

3-45

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