ICL7126CPL Intersil, ICL7126CPL Datasheet - Page 11

• Manufacturer Part Number: ICL7126CPL
• Description: IC ADC 3.5 DIGIT LCD LP 40-DIP
• Manufacturer: Intersil

Specifications of ICL7126CPL

• Display Type: LCD
• Configuration: 7 Segment
• Digits Or Characters: A/D 3.5 Digits
• Current - Supply: 70µA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -
• Interface: -
• Other names: ICL7126CPLIS

Typical Applications
3 reading/s. For 1 reading/sec., delete 750Ω resistor, change C
R
FIGURE 12. RECOMMENDED COMPONENT VALUES FOR 2.0V
Values shown are for 200mV full scale, 3 readings/sec., floating
supply voltage (9V battery).
OSC
FIGURE 10. ICL7126 USING THE INTERNAL REFERENCE
to values of Figure 11.
COMMON
BP/GND
REF HI
OSC 1
OSC 2
OSC 3
IN LO
BUFF
COMMON
TEST
C
C
IN HI
BP/GND
REF
REF
A-Z
INT
FULL SCALE
G2
G3
V+
V -
C3
A3
REF HI
OSC 1
OSC 2
OSC 3
IN LO
BUFF
TEST
C
C
IN HI
REF
REF
A-Z
INT
G2
G3
V+
V -
C3
A3
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
750Ω
TO DISPLAY
750kΩ
0.22µF
180kΩ
50pF
TO DISPLAY
TO BACK PLANE
0.1µF
0.33µF
11
180kΩ
1.8MΩ
50pF
0.047µF
0.1µF
180kΩ
TO BACKPLANE
0.047µF
250kΩ
0.01µF
10kΩ
1MΩ
0.01µF
SET V
= 1.000V
SET V
= 100mV
240kΩ
220kΩ
1MΩ
REF
REF
+
-
+
-
+
-
9V
IN
V +
IN
V
INT
-
ICL7126
,
IN LO is tied to COMMON, thus establishing the correct common
mode voltage. COMMON acts as a pre-regulator for the reference.
Values shown are for 1 reading/sec.
Since low TC zeners have breakdown voltages ~6.8V, diode must be
placed across the total supply (10V). As in the case of Figure 12, IN
LO may be tied to COMMON.
FIGURE 11. ICL7126 WITH AN EXTERNAL BAND-GAP
FIGURE 13. ICL7126 WITH ZENER DIODE REFERENCE
COMMON
COMMON
BP/GND
BP/GND
REF HI
REF HI
OSC 1
OSC 2
OSC 3
OSC 1
OSC 2
OSC 3
IN LO
BUFF
TEST
IN LO
BUFF
TEST
C
C
IN HI
C
C
IN HI
REFERENCE (1.2V TYPE)
REF
REF
A-Z
INT
REF
REF
A-Z
INT
V -
G2
C3
A3
G3
V+
V -
G2
C3
A3
G3
V+
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
TO DISPLAY
TO DISPLAY
0.33µF
560kΩ
0.15µF
0.47µF
100kΩ
0.22µF
50pF
100pF
0.1µF
0.1µF
180kΩ
47kΩ
20kΩ
1kΩ 10kΩ
0.01µF
0.01µF
SET V
= 100mV
200kΩ
SET V
= 100mV
1.2V (ICL8069)
1MΩ
1MΩ
REF
REF
15kΩ
27kΩ
FN3084.5
+
-
+
-
+5V
V+
IN
V-
IN