TC7107CPL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC7107CPL

3-1/2 Digit Analog-to-Digital Converters

Microchip Technology 

TC7106/A/TC7107/A

To Pin 1

40

39

38

37

36

35

34

33

TC7106A 32

TC7107A 31

30

29

28

27

26

25

24

23

22

21

Set VREF = 1V

100 kΩ

100 pF

24 kΩ

0.1 µF 25 kΩ 1 MΩ

0.047 µF

0.01 µF

470 kΩ

0.22 µF

To Display

V+

+

IN

–

V-

To PIn 1

40

39

38

37

36

35

34

33

TC7107A

32

31

30

29

28

27

26

25

24

23

22

21

100k Ω

Set VREF = 100mV

100pF

1kΩ

0.1 µF

10kΩ

1.2V

10kΩ

V+

+

0.01µF

1MΩ

IN

0.47µF

–

47kΩ

0.22 µF

To Display

FIGURE 10-8:

TC7106/TC7107:

Recommended Component Values for 2.00V Full

Scale.

VIN

9 MΩ

900 kΩ

90 kΩ

IN4148

200 mV

2V 0.02

mF

20V

47 kΩ

1W

200V 10%

+

1 mF

–

10 kΩ

1

1 MΩ

2

1 MΩ

3

4

–

6.8µF +

5

6

10 kΩ

7

COM

20 kΩ

10%

C1 = 3 - 10 pF Variable

C2 = 132 pF Variable

AD636

FIGURE 10-9:

TC7107 Operated from

Single +5V Supply.

+ 9V

26

14

1 V+

V-

27

13

24 kΩ

12

TC7106A 29

11

1 kΩ

36 VREF+

10

35 VREF-

28

9

32 Analog Common

8

1 MΩ 10%

31 VIN+

40

0.01

2.2µF

µF 30 VIN-

38

26 V-

39

SEG

BP

DRIVE

FIGURE 10-10: 3-1/2 Digit True RMS AC DMM.

LCD Display

DS21455D-page 22

© 2008 Microchip Technology Inc.

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