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ICL7116CPL fiches techniques PDF

Intersil - 31/2 Digit/ LCD/LED Display/ A/D Converter with Display Hold

Numéro de référence ICL7116CPL
Description 31/2 Digit/ LCD/LED Display/ A/D Converter with Display Hold
Fabricant Intersil 
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ICL7116CPL fiche technique
ICL7116, ICL7117
January 1998
31/2 Digit, LCD/LED Display,
A/D Converter with Display Hold
Features
• HOLD Reading Input Allows Indefinite Display Hold
• Guaranteed Zero Reading for 0V Input
• True Polarity at Zero for Precise Null Detection
• 1pA Typical Input Current
• Direct Display Drive
- LCD ICL7116
- LED lCL7117
• Low Noise - Less Than 15µVP-P (Typ)
• On Chip Clock and Reference
• Low Power Dissipation - Typically Less Than 10mW
• No Additional Active Circuits Required
• Surface Mount Package Available
Ordering Information
PART NUMBER
ICL7116CPL
ICL7116CM44
ICL7117CPL
TEMP.
RANGE (oC) PACKAGE
0 to 70 40 Ld PDIP
0 to 70 44 Ld MQFP
0 to 70 40 Ld PDIP
PKG. NO.
E40.6
Q44.10x10
E40.6
Description
The Intersil ICL7116 and ICL7117 are high performance, low
power, 31/2 digit, A/D converters. Included are seven segment
decoders, display drivers, a reference, and a clock. The
ICL7116 is designed to interface with a liquid crystal display
(LCD) and includes a multiplexed backplane drive. The
ICL7117 will directly drive an instrument size, light emitting
diode (LED) display.
The ICL7116 and ICL7117 have all of the features of the
ICL7106 and ICL7107 with the addition of a HOLD Reading
input. With this input, it is possible to make a measurement
and retain the value on the display indefinitely. To make room
for this feature the reference low input has been connected
to Common internally rather than being fully differential.
These circuits retain the accuracy, versatility, and true econ-
omy of the ICL7106 and ICL7107. They feature auto-zero to
less than 10µV, zero drift of less than 1µV/oC, input bias cur-
rent of 10pA maximum, and roll over error of less than one
count. The versatility of true differential input is of particular
advantage when measuring load cells, strain gauges and
other bridge-type transducers. And finally, the true economy
of single power supply operation (ICL7116) enables a high
performance panel meter to be built with the addition of only
eleven passive components and a display.
Pinouts
ICL7116, ICL7117 (PDIP)
TOP VIEW
HLDR
D1
C1
B1
(1’s) A1
F1
G1
E1
D2
C2
B2
(10’s)
A2
F2
E2
D3
B3
(100’s)
F3
E3
(1000) AB4
(MINUS) POL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 OSC 1
39 OSC 2
38 OSC 3
37 TEST
36 REF HI
35 V+
34 CREF+
33 CREF-
32 COMMON
31 IN HI
30 IN LO
29 A-Z
28 BUFF
27 INT
26 V-
25 G2 (10’s)
24 C3
23 A3 (100’s)
22 G3
21 BP/GND
ICL7116 (MQFP)
TOP VIEW
NC
NC
TEST
OSC 3
NC
OSC 2
OSC 1
HLDR
D1
C1
B1
44 43 42 41 40 39 38 37 36 35 34
1 33
2 32
3 31
4 30
5 29
6 28
7 27
8 26
9 25
10 24
11 23
12 13 14 15 16 17 18 19 20 21 22
NC
G2
C3
A3
G3
BP
POL
AB4
E3
F3
B3
A1 F1 G1 E1 D2 C2 B2 A2 F2 E2 D3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
1
File Number 3083.2

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