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ICL71C03 Datasheet

  • ICL71C03

  • Precision 4 1/2 Digit, A/D Converter

  • 19頁

  • INTERSIL   INTERSIL

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ICL8052/ICL71C03,
ICL8068/ICL71C03
August 1997
Precision 4
1
/
2
Digit, A/D Converter
Description
The ICL8052 or ICL8068/lCL71C03 chip pairs with their
multiplexed BCD output and digit drivers are ideally suited
for the visual display DVM/DPM market. The outstanding
4
1
/
2
digit accuracy, 200.00mV to 2.0000V full scale capabil-
ity, auto-zero and auto-polarity combine with true ratiometric
operation, almost ideal differential linearity and time-proven
dual slope conversion. Use of these chip pairs eliminates
clock feedthrough problems, and avoids the critical board
layout usually required to minimize charge injection.
When only 2000 counts of resolution are required, the 71C03
can be wired for 3
1
/
2
digits and give up to 30 readings/sec.,
making it ideally suited for a wide variety of applications.
The ICL71C03 is an improved CMOS plug-in replacement for
the lCL7103 and should be used in all new designs.
Features
鈥?Typically Less Than 2碌V
P-P
Noise (200.00mV Full
Scale, lCL8068)
鈥?Accuracy Guaranteed to
鹵1
Count Over Entire
鹵20,000
Counts (2.0000V Full Scale)
鈥?Guaranteed Zero Reading for 0V Input
鈥?True Polarity at Zero Count for Precise Null Detection
鈥?Single Reference Voltage Required
鈥?Over-Range and Under-Range Signals Available for
Auto-Ranging Capability
鈥?All Outputs TTL Compatible
鈥?Medium Quality Reference, 40ppm (Typ) on Board
鈥?Blinking Display Gives Visual Indication of Over
Range
鈥?Six Auxiliary Inputs/Outputs are Available for
Interfacing to UARTs, Microprocessors or Other
Complex Circuitry
鈥?5pA Input Current (Typ) (8052A)
Ordering Information
PART NUMBER
ICL8052CPD
lCL8052CDD
lCL8052ACPD
ICL8052ACDD
ICL8068CDD
ICL8068ACDD
lCL8068ACJD
ICL71C03CPl
lCL71C03ACPl
TEMP.
RANGE (
o
C)
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
0 to 70
PACKAGE
14 Ld PDIP
14 Ld CERDIP
14 Ld PDIP
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
28 Ld PDIP
28 Ld PDIP
PKG.
NO.
E14.3
F14.3
E14.3
F14.3
F14.3
F14.3
F14.3
E28.6
E28.6
Pinouts
ICL8052/ICL8068
(CERDIP, PDIP)
TOP VIEW
V+ 1
V- 1
-1.2V
COMP OUT 2
REF CAP 3
REF BYPASS 4
GND 5
REF OUT 6
REF SUPPLY 7
V
REF
13 +BUFF IN
12 +INT IN
11 -INT IN
10 -BUFF IN
9 BUFF OUT
ICL8052/ 8 V++
ICL8068
14 INT OUT
4
1
/
2
/ 3
1
/
2
2
ICL71C03 (PDIP)
TOP VIEW
28 BUSY
27 D
1
(LSD)
26 D
2
25 D
3
24 D
4
23 B
8
(MSB)
22 B
4
21 B
2
20 B
1
(LSB)
19 D
5
(MSD)
18 STROBE
17 A-Z IN
16 A-Z OUT
15 DIGITAL GND
POL 3
RUN/HOLD 4
COMP IN 5
V- 6
REFERENCE 7
REF. CAP. 1 8
REF. CAP. 2 9
ANALOG IN 10
ANALOG GND 11
CLOCK IN 12
UNDER-RANGE 13
OVER-RANGE 14
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
3081.1
3-34

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