3-34

Features

• Typically Less Than 2

Scale, lCL8068)

• Accuracy Guaranteed to

±1 Count Over Entire ±20,000

Counts (2.0000V Full Scale)

• Guaranteed Zero Reading for 0V Input

• True Polarity at Zero Count for Precise Null Detection

• Single Reference Voltage Required

• Over-Range and Under-Range Signals Available for

Auto-Ranging Capability

• All Outputs TTL Compatible

• Medium Quality Reference, 40ppm (Typ) on Board

• Blinking Display Gives Visual Indication of Over

Range

• Six Auxiliary Inputs/Outputs are Available for

Interfacing to UARTs, Microprocessors or Other

Complex Circuitry

• 5pA Input Current (Typ) (8052A)

Description

The ICL8052 or ICL8068/lCL71C03 chip pairs with their

multiplexed BCD output and digit drivers are ideally suited

for the visual display DVM/DPM market. The outstanding

ity, auto-zero and auto-polarity combine with true ratiometric

operation, almost ideal differential linearity and time-proven

dual slope conversion. Use of these chip pairs eliminates

clock feedthrough problems, and avoids the critical board

layout usually required to minimize charge injection.

When only 2000 counts of resolution are required, the 71C03

making it ideally suited for a wide variety of applications.

The ICL71C03 is an improved CMOS plug-in replacement for

the lCL7103 and should be used in all new designs.

Pinouts

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

ICL8052CPD

0 to 70

14 Ld PDIP

E14.3

lCL8052CDD

0 to 70

14 Ld CERDIP

F14.3

lCL8052ACPD

0 to 70

14 Ld PDIP

E14.3

ICL8052ACDD

0 to 70

14 Ld CERDIP

F14.3

ICL8068CDD

0 to 70

14 Ld CERDIP

F14.3

ICL8068ACDD

0 to 70

14 Ld CERDIP

F14.3

lCL8068ACJD

0 to 70

14 Ld CERDIP

F14.3

ICL71C03CPl

0 to 70

28 Ld PDIP

E28.6

lCL71C03ACPl

0 to 70

28 Ld PDIP

E28.6

ICL8052/ICL8068

(CERDIP, PDIP)

TOP VIEW

ICL71C03 (PDIP)

TOP VIEW

V-

COMP OUT

REF CAP

REF BYPASS

GND

REF OUT

REF SUPPLY

INT OUT

+BUFF IN

+INT IN

-INT IN

-BUFF IN

BUFF OUT

V++

1

2

3

4

5

6

7

14

13

12

11

10

9

8

-1.2V

ICL8052/

ICL8068

V+

2

POL

RUN/HOLD

COMP IN

V-

REFERENCE

REF. CAP. 1

REF. CAP. 2

ANALOG IN

ANALOG GND

CLOCK IN

UNDER-RANGE

OVER-RANGE

BUSY

STROBE

A-Z IN

A-Z OUT

DIGITAL GND

28

27

26

25

24

23

22

21

20

19

18

17

16

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

August 1997

ICL8052/ICL71C03,

ICL8068/ICL71C03

File Number

3081.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207