TC514 View Datasheet(PDF) - TelCom Semiconductor, Inc

Part Name

Description

Manufacturer

TC514

PRECISION ANALOG FRONT ENDS

TelCom Semiconductor, Inc 

PRECISION ANALOG FRONT ENDS

1 TC500

TC500A

TC510

TC514

TC05

CINT

1µF 0.33µF

CAZ

0.22µF

+5V

10k

RINT

100k

10k

CREF

0.22µF

1 VO–UT

2

CINT

3

CAZ

4

BUF

5 ACOM

6 CR–EF

7 CR+ EF

10k

C1, .01µF

9

V

+

REF

8 VR–EF

CAP– 28

DGND 27

CAP+ 26

25

VDD

A0 22

A1 19

CMPTR 23

A 22

B 21

TC514

CH1+ 18

CH1– 13

CH2+ 17

CH2– 12

CH3+ 16

CH3– 11

CH4+ 15

CH4– 10

1µF

+5V

+5V

ANALOG

MUX LOGIC

MICRO

CONTROLLER

INPUT 1+

INPUT 1–

INPUT 2+

INPUT 2–

INPUT 3+

INPUT 3–

INPUT4+

INPUT4–

TYPICAL WAVEFORMS

PIN 2

VI+N

PIN 23

VI–N PIN 2

PIN 23

Figure 10. TC514 Design Example (See "Design Example")

+5V

+

INPUT 1

–

+

INPUT 2

–

+

INPUT 3

–

+

INPUT 4

–

ANALOG MUX

CONTROL LOGIC

IBM

PRINTER PORT

2

PORT

0378

3

HEX

10

25

18 CH1+ VDD

13 CH1–

1

VO–UT

17 CH2+

12 CH2–

16 CH3+

11 CH3–

15 CH4+

10 CH4–

TC514

20 A0

19 A1

22

A

21

B

23 CMPTR

28

CAP –

26

CAP+

CR+EF 7

CR–EF 6

VR+EF 9

VR–EF 8

1µF

1µF

0.22µF

10k

10k

0.01µF

BUF 4 100kΩ

CAZ

CINT

3

0.22µF

2

0.33µF

10kΩ

TC04

DGND

27

5

ACOM

Figure 11. TC514 to IBM Compatible Printer Port

TELCOM SEMICONDUCTOR, INC.

2

3

4

5

6

7

8

3-33

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