icl8068a Intersil Corporation, icl8068a Datasheet - Page 13
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icl8068a
Manufacturer Part Number
icl8068a
Description
Precision 4 1/2 Digit, A/d Converter
Manufacturer
Intersil Corporation
Datasheet
1.ICL8068A.pdf
(23 pages)
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NOTE: For 3
SIGNAL
INPUT
CLOCK
120kHz = 3
READINGS/SEC
IN
10kΩ
0.1µF
1
/
2
digit, tie pin 2 low and change clock to 12kHz.
-15V
+5V
10µF
2.5kΩ
4.7kΩ
10
11
12
13
14
1
2
3
4
5
6
7
8
9
V+
4
POLARITY
RUN/HOLD
COMP IN
V-
REFERENCE
REF. CAP. 1
REF. CAP. 2
ANALOG IN
ANALOG GND
CLOCK IN
UNDER-RANGE
OVER-RANGE
13
8052A/
+5V
8068A
1
/
2
POL
GATES
/ 3
5kΩ
7409
ARE
FIGURE 7. ICL8052A (8068A)/71C03A 4
1
FIGURE 8. ICL8052A-8068A/71C03A PLASMA DISPLAY CIRCUIT
/
2
ICL8052A/ICL71C03, ICL8068A/ICL71C03
ICL71C03
POL D
150Ω
150Ω
DIGITAL GND
HI VOLTAGE BUFFER DI 505
5
(MSD) D
(MSB) B
(LSD) D
(LSB) B
STROBE
A-Z OUT
D
A-Z IN
BUSY
4
0.02
µF
71C03A
D
D
D
B
B
D
1
2
3
4
8
4
2
1
5
0.02
3
µF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D
0.02
2
5
µF
D
1
0.02
µF
0.02µF
4
B
B
B
B
8
4
2
1
1
a
g
/
2
47kΩ
kΩ
300
DIGIT A/D CONVERTER
36
kΩ
-15V
3
10µF
1kΩ
g
RBI BI D
10
kΩ
a
-15V
DM8880
300µF
PROG
2
1
2
3
4
5
6
7
V+
V-
COMP OUT
REF CAP
REF BYPASS
GND
REF OUT
REF SUPPLY
A
ICL8068A
1
3kΩ
BUFF OUT
150Ω
+BUFF IN
47kΩ
-BUFF IN
INT OUT
+5V
0V
+INT IN
-INT IN
+5V
V++
a
b
c
d
e
f
g
7447
RBI
14
13
12
11
10
9
8
B
B
B
B
+15V
1
2
3
4
0.22µF
90kΩ
1.0µF
10kΩ
100
kΩ