Datasheet

TC7116/A/TC7117/A
DS21457D-page 16  2002-2012 Microchip Technology Inc.
FIGURE 6-5: Circuit for Developing Under Range and Over Range Signals From TC7116/TC7117A
Outputs
FIGURE 6-6: TC7117/TC7117A With A 1.2 External Bandgap Reference (V
IN
- Tied to Common)
2120
40
35
26
To Logic
GND
V-
To Logic V
CC
V+
CD4077
U/R
O/R
CD4023
or 74C10
TC7116
TC7116A
O/R = Over Range
U/R = Under Range
100pF
0.47μF
47kΩ
To Display
0.1pF
1kΩ
V+
Set V
REF
= 100mV
10kΩ
10kΩ
1.2V
0.01μF
–
In
1MΩ
+
100kΩ
0.22μF
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TC7117
TC7117A