icl8068a Intersil Corporation, icl8068a Datasheet - Page 16

• Manufacturer Part Number: icl8068a
• Description: Precision 4 1/2 Digit, A/d Converter
• Manufacturer: Intersil Corporation

300kΩ
INPUT
36kΩ
-15V
100kΩ
0.1µF
1µF
-15V
ANALOG GND
+5V
10kΩ
5kΩ
10
11
12
13
14
1
2
3
4
5
6
7
8
9
-15V
300µF
ANALOG GND
V+
4
POL
R/H
COMP IN
V-
REF
REF. CAP. 1
REF. CAP. 2
INPUT
CLOCK
UR
OR
1
/
16
2
FIGURE 11. 4
10µF
/ 3
1
1
2
3
4
5
6
7
/
ICL71C03(A)
2
ICL8052A/ICL71C03, ICL8068A/ICL71C03
ICL8052A
8068A
1.0µF
DIG GND
STROBE
A-Z OUT
A-Z IN
BUSY
1
/
2
D
D
D
D
B
B
B
B
D
DIGIT LCD DPM WITH DIGIT BLANKING ON OVERRANGE
1
2
3
4
8
4
2
1
5
14
13
12
10
11
9
8
28
27
26
25
24
23
22
21
20
19
18
17
16
15
0V
0.22µF
100kΩ
1
+15V
/
2
CD4030
+5V
1
/
4
+5V
CD4030
CD4081
CD4071
4
1
/
2
+5V
DIGIT LCD DISPLAY
0V
1
/
4
CD4071
CD4030
1
2
3
4
V-
OUT
RESET
ICM7555
0V
BACKPLANE
5 BP
31 D
32 D
33 D
34 D
30 B
29 B
28 B
27 B
35 V-
ICM7211A
V+
300pF
1
2
3
4
3
2
1
0
8
7
6
5
OSC 36
37 - 40
2, 3, 4
6 - 26
V+ 1
+5V
0V
28 SEGMENTS
D
10 TO 15kΩ
ADJUST TO
F
4.7kΩ
1
CL
- D
CAPACITOR
22-100pF
OPTIONAL
+5V
= 120kHz
4
+5V