1

®

FN3086.6

ICL7136

31/2 Digit LCD, Low Power Display, A/D

Converter with Overrange Recovery

digit, A/D converter. Included are seven segment decoders,

display drivers, a reference, and a clock. The ICL7136 is

designed to interface with a liquid crystal display (LCD) and

includes a multiplexed backplane drive.

The ICL7136 brings together a combination of high

accuracy, versatility, and true economy. It features auto-zero

to less than 10

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 other bridge

type transducers. Finally, the true economy of single power

supply operation, enables a high performance panel meter

to be built with the addition of only 10 passive components

and a display.

The ICL7136 is an improved version of the ICL7126,

eliminating the overrange hangover and hysteresis effects,

and should be used in its place in all applications. It can also

be used as a plug-in replacement for the ICL7106 in a wide

variety of applications, changing only the passive

components.

Features

• First Reading Overrange Recovery in One Conversion

Period

• Guaranteed Zero Reading for 0V Input on All Scales

• True Polarity at Zero for Precise Null Detection

• 1pA Typical Input Current

• True Differential Input and Reference, Direct Display Drive

- LCD ICL7136

• Low Noise - Less Than 15

• On Chip Clock and Reference

• No Additional Active Circuits Required

• Low Power - Less Than 1mW

• Surface Mount Package Available

• Drop-In Replacement for ICL7126, No Changes Needed

• Pb-Free Plus Anneal Available (RoHS Compliant)

Ordering Information

PART NUMBER

TEMP.

RANGE (°C)

PACKAGE

PKG.

DWG. #

ICL7136CPL

0 to 70

40 Ld PDIP

E40.6

ICL7136CPLZ

(Note 1)

0 to 70

40 Ld PDIP

(Pb-free) (Note 2)

E40.6

ICL7136CM44

0 to 70

44 Ld MQFP

Q44.10x10

ICL7136CM44Z

(Note 1)

0 to 70

44 Ld MQFP

(Pb-free)

Q44.10x10

ICL7136CM44ZT

(Note 1)

44 Ld MQFP Tape and Reel

(Pb-free)

Q44.10x10

NOTES:

1. Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and

100% matte tin plate termination finish, which are RoHS

compliant and compatible with both SnPb and Pb-free soldering

operations. Intersil Pb-free products are MSL classified at

Pb-free peak reflow temperatures that meet or exceed the

Pb-free requirements of IPC/JEDEC J STD-020.

2. Pb-free PDIPs can be used for through hole wave solder

processing only. They are not intended for use in Reflow solder

processing applications.

Data Sheet

July 21, 2005

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

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2002, 2004, 2005. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.