ICL7107 데이터 시트보기 (PDF) - Estek Electronics Co. Ltd

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ICL7107

True Differential input and Reference, Direct Display

Estek Electronics Co. Ltd 

ICL7106/7107

Description

The 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 interface with a

liquid crystal display (LCD) and includes a multiplexed backplane drive, the ICL7107 will directly drive an

instrument size light emitting diode (LED) display. The ICL7106 and ICL7107 bring together a combination of

high accuracy, versatility, and true economy. True differential inputs and reference are useful in all systems, but

give the designer an uncommon advantage when measuring load cells, strain gauges and other bridge type

transducers. Finally he 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

display.

a

Features

• Guaranteed Zero Reading for 0V input on All Scales

ICL7106, ICL7107

TOP VIEW

V+ 1

D1 2

C1 3

40 OSC 1

39 OSC 2

38 OSC 3

• True Polarity at Zero for Precise Null Detection

• True Differential input and Reference, Direct Display

• Drive

- LCD ICL7106

- LED ICL7107

• Low Noise-Less Than 15 uVp-p

• On Chip Clock and Reference

• Low Power DissipationTypically Less Than 10mW

• No Additional Active Circuits Required

• New Small Outline Surface Mount Package Available

(1’s)

(10’s)

(100’s)

B1 4

A1 5

F1 6

G1 7

E1 8

D2 9

C2 10

B2 11

A2 12

F2 13

E2 14

D3 15

B3 16

-F3 17

37 TEST

36 REF HI

35 REF LO

34 CREF+

CREF-

33 COMMON

32 IN HI

31 IN LO

30 A-Z

29 BUFF

28 INT

27 V-

26 G2 (10’s)

25 C3

24 A3

E3 18

23

(1000) AB4 19

22 G3

(MINUS)

POL 20

21 BP/GND

Absolute Maximum Ratings

Supply Voltage

ICL7106, V+ to V-.......................................................15V

ICL7107, V+ to GND...................................................6V

ICL7107, V- to GND....................................................-9V

Analog input Voltage (Either input) (Note 1)..................V+ to V-

Reference input Voltage (Either input)...........................V+ to V-

Clock input

ICL7106......................................................TEST to V+

ICL7107.......................................................GND to V+

BEIJING ESTEK ELECTRONICS CO.,LTD

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