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Texas Instruments ADS8372EVM, User Manual, Page: 13 / 14

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Texas Instruments ADS8372EVM User Manual Download Page 13

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ti

12500 TI Boulevard.  Dallas, Texas 75243

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Revision History

REV

ECN Number

Approved

DOCUMENT CONTROL #:

2

2

Circuits

A

DATE:

30-Jun-2005

Circuits

6458774

C35

0.01uF

C20

0.1uF

C38

0.01uF

C24

2.2uF

C25

2.2uF

C39

0.01uF

C27

2.2uF

C41

0.01uF

+5VCC

+5VCC

+5VCC

C14

2.2uF

C36

0.01uF

+5VCC

C15

2.2uF

C37

0.01uF

+VBD

EXT_REF

3

1

2

SJP4

+

C34

10uF

C1

47uF

R18

768

R6

100

C29

NI

+VCC

C2

1uF

C8

0.1uF

-VCC

C9

0.1uF

C3

1uF

IN

1

OUT

2

GND

3

U1

NI

+5VCC

R2

1.2k

3

1

2

SJP2

3

1

2

SJP1

R19

0

Lijoy Philipose

Lijoy Philipose

3

2

6

7

4

 

5

 

1

U3

OPA627

R1

50

3

1

2

SJP3

TP5

CS

SCLK

FS

PD

B_SDO

CS

SCLK

FS

R11

10k

R12

10k

+VBD

R13

10k

PD

+

C54

10uF

+

C51

10uF

TP8

+5VCC

C55

0.01uF

C11

0.1uF

TP9

TP7

+VBD

C58

0.01uF

C13

0.1uF

TP14

C47
10uF

C50
10uF

C62

1000pF

C59

1000pF

+AVCC

+BVDD

L3

MMZ2012R601A

+

C53

10uF

+

C52
10uF

C6

1uF

C7

1uF

C56
0.01uF

C57
0.01uF

TP11

TP12

TP13

+VCC

-VCC

C48
10uF

C49
10uF

C60
1000pF

C61
1000pF

+VA

-VA

TP10

AGND

1

AGND

2

+VA

3

AGND

4

AGND

5

VA

6

REFM

7

REFIN

8

REFOUT

9

NC

10

IN+

11

IN-

12

NC

13

VA

14

AGND

15

VA

16

VA

17

AGND

18

AGND

19

BVDD

20

BGND

21

BUSY

22

SDO

23

SCLK

24

CONVST

25

CS

26

FS

27

PD

28

U12

ADS8372/ADS8382

CONVST

SDO

BUSY

B_BUSY

CONVST

B_PD

B_FS

B_CS

B_CONVST

B_SCLK

R8

10k

R10

10k

W3

W4

W5

C26

0.1uF

C40

0.01uF

+5VCC

R28

1k

R29

1k

R21

100

R22

100

R23

100

R24

100

R25

100

R26

100

R27

100

C42

NI

C43 NI

R30
NI

+VBD

+VBD

C23

0.1uF

+VBD

C17

0.1uF

OE

1

A

2

GND

3

Y

4

VCC

5

U5

SN74AHC1G125

OE

1

A

2

GND

3

Y

4

VCC

5

U7

SN74AHC1G125

OE

1

A

2

GND

3

Y

4

VCC

5

U6

SN74AHC1G125

C18

0.1uF

OE

1

A

2

GND

3

Y

4

VCC

5

U8

SN74AHC1G125

OE

1

A

2

GND

3

Y

4

VCC

5

U9

SN74AHC1G125

OE

1

A

2

GND

3

Y

4

VCC

5

U10

SN74AHC1G125

OE

1

A

2

GND

3

Y

4

VCC

5

U11

SN74AHC1G125

+VBD

C19

0.1uF

+VBD

C21

0.1uF

+VBD

C22

0.1uF

+VBD

+VBD

C28

0.1uF

-IN

-VCC

+VCC

C33

68pF

R17

1k

C12

0.1uF

C4

1uF

C5

1uF

C10

0.1uF

R33

25

C30

NI

R15

1k

R34

25

C31

NI

+IN

C45

1uF

R7

100

R14

910

R3
NI

R16

1k

TP6

5

4

8

1

2

+

-

VOCM

VOUT-

VOUT+

3

6

+VCC

-VCC

7

NC

U13

THS4131

1

2

SJP5

IN

1

OUT

2

GND

3

U2

NI

+5VCC

C44

1uF

C46

6800pF

R4

NI

R31

NI

R5

NI

C32

68pF

*

*

*

NC

1

+VIN

2

EN

3

GND

4

NC

5

VREF

6

NC

7

NC

8

U14

REF1004-2.5

+5VCC

C64

NI

C63

NI

R35

49.9k

+5VCC

R36

0

R38

0

R37

0

RP1

10K

R32
10K

R39
10K

L4

MMZ2012R601A

L2

MMZ2012R601A

L1

MMZ2012R601A

Summary of Contents for ADS8372EVM

Page 1: ...mbers ADS8372 SLAS451 REF1004C 2 5 SBVS002 SN74AHC1G125 SCLS377 THS4131 SLOS318 OPA627AU SBOS165 Contents 1 EVM Overview 2 2 Analog Interface 2 3 Digital Interface 4 4 Power Supplies 5 5 Using the EVM...

Page 2: ...such that each leg is always equal to or above zero volts The common mode voltage should be half the reference voltage The peak to peak amplitude on each input leg can be as large as the reference vol...

Page 3: ...urces The internal reference is a 4 096 V reference voltage generated by the ADS8372 on pin 9 The on board reference can be either a REF3040 U1 or REF1004 2 5 U14 The EVM ships with the REF1004 2 5 in...

Page 4: ...high Shorted N A W5 Set chip select signal CS low Shorted 1 N A 1 Factory Installed The ADS8372EVM is designed for easy interfacing to multiple platforms Samtec plug and socket connectors provide a co...

Page 5: ...D 9 10 5VD The ADS8372EVM serves three functions 1 As a reference design 2 As a prototype board 3 As a software test platform As a reference design the ADS8372EVM contains the essential circuitry to s...

Page 6: ...amplifier or limiting noise for best performance The analog power and digital connectors can be made to plug into a standard 0 1 breadboard or ribbon cables to interface directly to FPGAs or processor...

Page 7: ...SMD Alternate 1 49 9 k R35 805 Panasonic ECG or ERJ 6ENF4992V RES 49 9 k 1 10 W 1 0805 SMD Alternate 2 0 R37 R38 1206 Panasonic ECG or ERJ 8GEY0R00V RES 0 1 4 W 5 1206 SMD Alternate 1 47 F C1 1206 TD...

Page 8: ...ments REF1004C 2 5 2 5 V Micropower voltage reference 1 3POS_JUMPER W1 3pos_jump Samtec TSW 103 07 L S 3 Position jumper _ 0 1 spacing 3 2POS_JUMPER W3 W4 W5 2pos_jump Samtec TSW 102 07 L S 2 Position...

Page 9: ...www ti com 8 Board Layers Board Layers Figure 2 Top Layer Figure 3 Power Plane SLAU160 July 2005 ADS8372EVM 9...

Page 10: ...www ti com Board Layers Figure 4 Ground Plane Figure 5 Bottom Layer ADS8372EVM 10 SLAU160 July 2005...

Page 11: ...www ti com 9 Schematics Schematics Schematic diagrams are appended following this page SLAU160 July 2005 ADS8372EVM 11...

Page 12: ...2005 ADS8372EVM ADS8382EVM 6458774 Serial Control 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P2 Analog Input 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P1 VA VA CS FS PD SCLK AVCC VA...

Page 13: ...8 REFOUT 9 NC 10 IN 11 IN 12 NC 13 VA 14 AGND 15 VA 16 VA 17 AGND 18 AGND 19 BVDD 20 BGND 21 BUSY 22 SDO 23 SCLK 24 CONVST 25 CS 26 FS 27 PD 28 U12 ADS8372 ADS8382 CONVST SDO BUSY B_BUSY CONVST B_PD B...

Page 14: ...ute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual pro...

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