Indicador

ICL7106, ICL7107,
ICL7106S, ICL7107S
3 1/2 Digit,
LCD/LED Display, A/D Converters

January 1998

Features

Description

• Guaranteed Zero Reading for 0V Input on All Scales

The Intersil ICL7106 and ICL7107 are high performance, low
power, 31/2 digit A/D converters. Included are seven segment decoders, display drivers, a reference, and a clock.
The ICL7106 is designed to interfacewith a liquid crystal display (LCD) and includes a multiplexed backplane drive; the
ICL7107 will directly drive an instrument size light emitting
diode (LED) display.

• True Polarity at Zero for Precise Null Detection
• 1pA Typical Input Current
• True Differential Input and Reference, Direct Display Drive
- LCD ICL7106, LED lCL7107
• Low Noise - Less Than 15µVP-P

The ICL7106 andICL7107 bring together a combination of
high accuracy, versatility, and true economy. It features autozero to less than 10µV, zero drift of less than 1µV/oC, input
bias current of 10pA (Max), and rollover error of less than
one count. True differential inputs and reference are useful in
all systems, but give the designer an uncommon advantage
when measuring load cells, strain gauges and otherbridge
type transducers. Finally, the true economy of single power
supply operation (ICL7106), enables a high performance
panel meter to be built with the addition of only 10 passive
components and a display.

• On Chip Clock and Reference
• Low Power Dissipation - Typically Less Than 10mW
• No Additional Active Circuits Required
• Enhanced Display Stability (ICL7106S, ICL7107S)

OrderingInformation
PART NO.

TEMP.
RANGE (oC)

PACKAGE

PKG. NO.

ICL7106CPL

0 to 70

40 Ld PDIP

E40.6

ICL7106RCPL

0 to 70

40 Ld PDIP (Note)

E40.6

ICL7106CM44

0 to 70

44 Ld MQFP

Q44.10x10

ICL7106SCPL

0 to 70

40 Ld PDIP

E40.6

ICL7107SCPL

0 to 70

40 Ld PDIP

E40.6

ICL7107CPL

0 to 70

40 Ld PDIP

E40.6

ICL7107RCPL

0 to 70

40Ld PDIP (Note)

E40.6

ICL7107CM44

0 to 70

44 Ld MQFP

Q44.10x10

NOTE: “R” indicates device with reversed leads for mounting to PC
board underside. “S” indicates enhanced stability.

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 19991

File Number

3082.2

ICL7106, ICL7107, ICL7106S, ICL7107S
Pinouts
ICL7106, ICL7107 (PDIP)
TOP VIEW

ICL7106R, ICL7107R (PDIP)
TOP VIEW

V+

OSC 1

1

40 V+

39 OSC 2

OSC 2

2

39 D1

3

38 OSC 3

OSC 3

3

38 C1

B1

4

37 TEST

TEST

4

37 B1

A1

5

36 REF HI

REF HI

5

36 A1

F1

6

35 REF LO

REF LO

6

35 F1G1

7

7

34 G1

8

34 CREF+
33 CREF-

CREF+

E1

CREF-

8

33 E1

D2

9

32 COMMON

COMMON

9

32 D2

C2

10

31 IN HI

IN HI 10

31 C2

B2

11

30 IN LO

IN LO 11

30 B2

A2

(10’s)

40 OSC 1

2

C1
(1’s)

1

D1

12

29 A-Z

A-Z 12

29 A2

BUFF 13

28 F2

INT 14

27 E2

V- 15

26 D3

G2 (10’s) 16

25 B3C3 17

24 F3

A3 18

23 E3

G3 19

22 (1000) AB4

F2

13

28 BUFF

E2

14

27 INT

D3

15

26 V-

B3

16

25 G2 (10’s)

F3

17

24 C3

E3

18

23 A3

(1000) AB4

19

22 G3

POL

20

21 BP/GND

(100’s)

BP/GND 20

21 POL

V-

INT

BUFF

A-Z

IN LO

COMMON

IN HI

CREF-

CREF+

ICL7106, ICL7107 (MQFP)
TOP VIEW
REFLO

(MINUS)

(100’s)

REF HI

(100’s)

44 43 42 41 40 39 38 37 36 35 34
33
2
32

NC

TEST

3

31

C3

OSC 3

4

30

A3

NC

5

29

G3

OSC 2

6

28

BP/GND

OSC 1

7

27

POL

V+

8

26

AB4

D1

9

25

E3

C1

10

24

F3

B1

11
23
12 13 14 15 16 17 18 19 20 21 22

B3

NC
NC

1

A1 F1 G1 E1 D2 C2 B2...