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ICL7116 查看數據表(PDF) - Intersil

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ICL7116 3 1/2 Digit, LCD/LED Display, A/D Converter with Display Hold Intersil
Intersil Intersil
ICL7116 Datasheet PDF : 14 Pages
First Prev 11 12 13 14
ICL7116, ICL7117
Typical Applications
Application Notes
The ICL7116 and ICL7117 may be used in a wide variety of
configurations. The circuits which follow show some of the
possibilities, and serve to illustrate the exceptional versatil-
ity of these A/D converters.
The following application notes contain very useful
information on understanding and applying this part and
are available from Intersil Corporation.
NOTE #
DESCRIPTION
AN016 “Selecting A/D Converters”
AN017 “The Integrating A/D Converter”
AN018 “Do’s and Don’ts of Applying A/D
Converters”
AnswerFAX
DOC. #
9016
9017
9018
AN023 “Low Cost Digital Panel Meter Designs”
9023
AN032 “Understanding the Auto-Zero and
Common Mode Performance of the
ICL7136/7/9 Family”
9032
AN046 “Building a Battery-Operated Auto
Ranging DVM with the ICL7106”
9046
AN047 “Games People Play with Intersil’ A/D
Converters,” edited by Peter Bradshaw
AN052 “Tips for Using Single Chip 31/2 Digit A/D
Converters”
9047
9052
Typical Applications
OSC 1 40
OSC 2 39
OSC 3 38
TEST 37
REF HI 36
V+ 35
CREF 34
CREF 33
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
INT 27
V - 26
G2 25
C3 24
A3 23
G3 22
BP 21
100k
100pF
SET VREF
= 100mV
1k22k
0.1µF
0.47µF
47k
1M
0.01µF
0.22µF
+
IN
-
+
9V
-
TO DISPLAY
TO BACKPLANE
OSC 1 40
OSC 2 39
OSC 3 38
TEST 37
REF HI 36
V+ 35
CREF 34
CREF 33
COMMON 32
IN HI 31
IN LO 30
A-Z 29
BUFF 28
INT 27
V - 26
G2 25
C3 24
A3 23
G3 22
GND 21
100k
100pF
SET VREF
= 100mV
1k22k
0.1µF
0.47µF
47k
1M
0.01µF
0.22µF
TO DISPLAY
+5V
+
IN
-
-5V
Values shown are for 200mV full scale, 3 readings/sec., floating
supply voltage (9V battery).
Values shown are for 200mV full scale, 3 readings/sec. IN LO may
be tied to either COMMON for inputs floating with respect to
supplies, or GND for single ended inputs. (See discussion under
Analog COMMON.)
FIGURE 11. ICL7116 USING THE INTERNAL REFERENCE
FIGURE 12. ICL7117 USING THE INTERNAL REFERENCE
11
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