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.
RANGE (
o
C)
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