TC7106 Microchip, TC7106 Datasheet - Page 19

• Manufacturer Part Number: TC7106
• Description: 3-1/2 Digit Analog-to-Digital Converters
• Manufacturer: Microchip

FIGURE 10-6:
FIGURE 10-7:
©
TC7107A
2002 Microchip Technology Inc.
O/R
U/R
CD4023
OR 74C10
To Pin 1
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
To Logic
0.47µF
0.22µF
To Display
V
CC
0.1µF
V+
TC7107 INTERNAL
REFERENCE: 200mV
FULL SCALE, 3RPS,
V
SINGLE ENDED INPUTS
CIRCUIT FOR
DEVELOPING UNDER
RANGE AND OVER
RANGE SIGNALS FROM
TC7106A OUTPUTS
CD4077
100kΩ
IN
100pF
- TIED TO GND FOR
1kΩ
Set V
47kΩ
O/R = Over Range
U/R = Under Range
1
20
0.01µF
TC7106A
REF
22kΩ
1MΩ
= 100mV
40
21
To Logic
+
–
V
IN
V-
+5V
-5V
CC
FIGURE 10-8:
FIGURE 10-9:
TC7106A
TC7107A
TC7107A
TC7106/A/TC7107/A
Note: An external reference must be used in this application.
To PIn 1
To Pin 1
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
0.22µF
0.47µF
To Display
0.047µF
0.22µF
To Display
0.1µF
0.1µF
TC7106/TC7107:
RECOMMENDED
COMPONENT VALUES
FOR 2.00V FULL SCALE
TC7107 OPERATED FROM
SINGLE +5V SUPPLY
100kΩ
100pF
100kΩ
100pF
1kΩ
47kΩ
25kΩ
0.01µF
470kΩ
Set V
Set V
0.01µF
1.2V
10kΩ
REF
DS21455B-page 19
REF
1MΩ
24kΩ
= 100mV
= 1V
1MΩ
10kΩ
+
–
–
IN
IN
V+
V-
V+