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Data Sheet

ManualsBrandsConrad Components ManualsEducation & Development Kits115452 LCD thermometer Assembly kit 9 V DC, 12 V DC -50 - 150 °C
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4
Typical Applications and Test Circuits
DISPLAY DRIVER ICL7107 ONLY
Segment Sinking Current V+ = 5V, Segment Voltage = 3V
(Except Pins 19 and 20) 58- mA
Pin 19 Only 10 16 - mA
Pin 20 Only 47- mA
NOTES:
3. Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.
4. Unless otherwise noted, specifications apply to both the ICL7106 and ICL7107 at T
A
= 25
o
C, f
CLOCK
= 48kHz. ICL7106 is tested in the
circuit of Figure 1. ICL7107 is tested in the circuit of Figure 2.
5. Back plane drive is in phase with segment drive for ‘off’ segment, 180 degrees out of phase for ‘on’ segment. Frequency is 20 times
conversion rate. Average DC component is less than 50mV.
6. Not tested, guaranteed by design.
7. Sample Tested.
Electrical Specifications (Note 3) (Continued)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
FIGURE 1. ICL7106 TEST CIRCUIT AND TYPICAL APPLICATION WITH LCD DISPLAY COMPONENTS SELECTED FOR 200mV
FULL SCALE
FIGURE 2. ICL7107 TEST CIRCUIT AND TYPICAL APPLICATION WITH LED DISPLAY COMPONENTS SELECTED FOR 200mV
FULL SCALE
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
28
40
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
22
21
V+
D1
C1
B1
A1
F1
G1
E1
D2
C2
B2
A2
F2
E2
D3
B3
F3
E3
AB4
POL
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
+
C
REF
-
COM
IN HI
IN LO
A-Z
BUFF
INT
V-
G2
C3
A3
G3
BP
DISPLAY
DISPLAY
C
1
C
2
C
3
C
4
R
3
R
1
R
4
C
5
+ -
IN
R
5
R
2
9V
ICL7106
C
1
= 0.1µF
C
2
= 0.47µF
C
3
= 0.22µF
C
4
= 100pF
C
5
= 0.02µF
R
1
= 24kΩ
R
2
= 47kΩ
R
3
= 100kΩ
R
4
= 1kΩ
R
5
= 1MΩ
+
-
13
1
2
3
4
5
6
7
8
9
10
11
12
14
15
16
17
18
19
20
28
40
39
38
37
36
35
34
33
32
31
30
29
27
26
25
24
23
22
21
V+
D1
C1
B1
A1
F1
G1
E1
D2
C2
B2
A2
F2
E2
D3
B3
F3
E3
AB4
POL
OSC 1
OSC 2
OSC 3
TEST
REF HI
REF LO
C
REF
+
C
REF
-
COM
IN HI
IN LO
A-Z
BUFF
INT
V-
G2
C3
A3
G3
GND
DISPLAY
DISPLAY
C
1
C
2
C
3
C
4
R
3
R
1
R
4
C
5
+ -
IN
R
5
R
2
ICL7107
+5V -5V
C
1
= 0.1µF
C
2
= 0.47µF
C
3
= 0.22µF
C
4
= 100pF
C
5
= 0.02µF
R
1
= 24kΩ
R
2
= 47kΩ
R
3
= 100kΩ
R
4
= 1kΩ
R
5
= 1MΩ
ICL7106, ICL7107, ICL7106S, ICL7107S