5-6

Features

• 16-Bit/14-Bit Binary Three-State Latched Outputs Plus

Polarity and Overrange

• Ideally Suited for Interface to UARTs and

Microprocessors

• Conversion on Demand or Continuously

• Guaranteed Zero Reading for 0V Input

• True Polarity at Zero Count for Precise Null Detection

• Single Reference Voltage for True Ratiometric

Operation

• Onboard Clock and Reference

• Auto-Zero, Auto-Polarity

• Accuracy Guaranteed to 1 Count

• All Outputs TTL Compatible

•

±4V Analog Input Range

• Status Signal Available for External Sync, A/Z in

Preamp, Etc.

Description

The ICL7104, combined with the ICL8052 or ICL8068,

forms a member of Intersil’ high performance A/D converter

family. The ICL7104-16, performs the analog switching and

digital function for a 16-bit binary A/D converter, with full

three-state output, UART handshake capability, and other

outputs for easy interfacing. The ICL7014-14 is a 14-bit

version. The analog section, as with all Intersil’ integrating

converters, provides fully precise Auto-Zero, Auto-Polarity

(including

±0 null indication), single reference operation,

very high input impedance, true input integration over a

constant

period

for

maximum

EMI

rejection,

fully

rationmetric

operation,

over-range

indication,

and

a

medium quality built-in reference. The chip pair also offers

optional input buffer gain for high sensitivity applications, a

built-in clock oscillator, and output signals for providing an

external Auto-Zero capability in preconditioning circuitry,

synchronizing external multiplexers, etc.

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

ICL7104-14CPL

0 to 70

40 Ld PDIP

E40.6

lCL7104-16CPL

0 to 70

40 Ld PDIP

E40.6

August 1997

ICL8052/ICL7104,

ICL8068/ICL7104

14-Bit/16-Bit, Microprocessor-

Compatible, 2-Chip, A/D Converter

File Number

3091.1

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

1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999