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ICL7135CPIZ Datasheet(PDF) 1 Page - Intersil Corporation

Part # ICL7135CPIZ
Description  4쩍 Digit, BCD Output, A/D Converter
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ICL7135CPIZ Datasheet(HTML) 1 Page - Intersil Corporation

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1
®
FN3093.4
ICL7135
41/2 Digit, BCD Output, A/D Converter
The Intersil ICL7135 precision A/D converter, with its
multiplexed BCD output and digit drivers, combines dual-
slope conversion reliability with
±1 in 20,000 count accuracy
and is ideally suited for the visual display DVM/DPM market.
The 2.0000V full scale capability, auto-zero, and auto-
polarity are combined with true ratiometric operation, almost
ideal differential linearity and true differential input. All
necessary active devices are contained on a single CMOS
lC, with the exception of display drivers, reference, and a
clock.
The ICL7135 brings together an unprecedented combination
of high accuracy, versatility, and true economy. It features
auto-zero to less than 10
μV, zero drift of less than 1μV/oC,
input bias current of 10pA (Max), and rollover error of less
than one count. The versatility of multiplexed BCD outputs is
increased by the addition of several pins which allow it to
operate in more sophisticated systems. These include
STROBE, OVERRANGE, UNDERRANGE, RUN/HOLD and
BUSY lines, making it possible to interface the circuit to a
microprocessor or UART.
Features
• Accuracy Guaranteed to
±1 Count Over Entire ±20000
Counts (2.0000V Full Scale)
• Guaranteed Zero Reading for 0V Input
• 1pA Typical Input Leakage Current
• True Differential Input
• True Polarity at Zero Count for Precise Null Detection
• Single Reference Voltage Required
• Overrange and Underrange Signals Available for Auto-
Range Capability
• All Outputs TTL Compatible
• Blinking Outputs Gives Visual Indication of Overrange
• Six Auxiliary Inputs/Outputs are Available for Interfacing to
UARTs, Microprocessors, or Other Circuitry
• Multiplexed BCD Outputs
• Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
ICL7135
(PDIP)
TOP VIEW
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE
(°C)
PACKAGE
PKG.
DWG. #
ICL7135CPI
ICL7135CPI
0 to +70 28 Ld PDIP
E28.6
ICL7135CPIZ
(Note 1)
ICL7135CPIZ 0 to +70 28 Ld PDIP
(Pb-free) (Note 2)
E28.6
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.
V-
REFERENCE
NALOG COMMON
INT OUT
AZ IN
BUFF OUT
REF CAP -
REF CAP +
IN LO
IN HI
V+
(MSD) D5
(LSB) B1
B2
UNDERRANGE
STROBE
R/H
DIGITAL GND
POL
BUSY
D2
D3
D4
(MSB) B8
B4
OVERRANGE
CLOCK IN
(LSD) D1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Data Sheet
August 28, 2007
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2000, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


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