
3-200
TELCOM SEMICONDUCTOR, INC.
TC7106
TC7106A
TC7107
TC7107A
3-1/2 DIGIT A/D CONVERTERS
Figure 21. Integrated Circuit Temperature Sensor
TC7106A
V–REF
COMMON
V+
IN
V+
+
–
9V
V+
2
1
4
26
6
5
3
2
3
1
4
8
TEMPERATURE
DEPENDENT
OUTPUT
NC
1.3k
50k
CONSTANT 5 V
50k
51k
5.1k
R4
R5
R1
R2
VOUT =
1.86V @
25
°
C
V+
REF
V–N
VFS = 2.00V
GND
V–
VOUT
ADJ
TEMP
REF02
TC911
Figure 23. TC7107A Internal Reference (200mV Full-Scale,
3RPS, V
–
IN
Tied to GND for Single Ended Inputs).
Figure 22. TC7106A Using the Internal Reference: 200mV Full-
Scale, 3 Readings-per-second (RPS).
100k
100pF
0.47
μ
F
47k
0.22
μ
F
TO DISPLAY
0.1
μ
F
21
1k
22k
1M
SET VREF= 100mV
0.01
μ
F
+
IN
–
TO PIN 1
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
–5V
+5V
TC7107A
100k
100pF
0.47
μ
F
47k
0.22
μ
F
TO DISPLAY
TO BACKPLANE
0.1
μ
F
21
1 k
22k
1M
9V
SET VREF= 100mV
TC7106A
0.01
μ
F
+
IN
–
TO PIN 1
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
+
–