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PA006C_Schematic1.SchDoc

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Size:

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File:

Sheet:

of

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ADS91xx_ADS89xx_EVM-PDK

Project Title:

Designed for:

Public

Assembly Variant:

003

© Texas Instruments

2016

Drawn By:
Engineer:

Shridhar More

Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this specification or any information contained therein. Texas Instruments and/or its licensors do not
warrant that this design will meet the specifications, will be suitable for your application or fit for any particular purpose, or will operate in an implementation. Texas Instruments and/or its
licensors do not warrant that the design is production worthy. You should completely validate and test your design implementation to confirm the system functionality for your application.

Version control disabled

SVN Rev:

PA006

Number:

Rev:

C

TID #:

N/A

Orderable:

1

2

3

4

5

J3
142-0701-801

1

2

3

4

5

J7
142-0701-801

AGND

SDO-0

SDO-1

SDO-2

SDO-3

SCLK_RTN

SDI

CONVST

CS

SCLK

SDI

AGND

AGND

HOST_A1_IO6

AGND

0

R34

0

R35

0

R37

0

R47

0

R42

0

R43

0

R46

0

R49

0

R51

0

R40

0

R32

RVS

EVM_ID_PWR

10μF

C48

AGND

0

R60

EVM_DVDD

0

R57

EVM_ID_SDA
EVM_ID_SCL

10μF

C44

AGND

5015

TP6

EVM_ID_PWR

5016

TP5

EVM_DVDD

A0

1

A1

2

A2

3

VSS

4

SDA

5

SCL

6

WP

7

VCC

8

U8

BR24G32FVT-3AGE2

EVM_ID_SDA

EVM_ID_SCL

EVM_ID_PWR

WP

AGND

EVM_ID_PWR

10.0k

R65

EVM_ID_PWR

AGND

0.1μF

C49

AGND

RST

10.0k

R23

EVM_DVDD

EVM_PRSNT_N

AGND

AGND

EVM_REG_5V5

5016

TP2

AGND

5016

TP3

AGND

LDO_IN_5V5

5016

TP1

0

R24

0

R59

Rafael Ordonez

0.1μF

C47

AGND

TEST_4.3V

1

2

3

J4
TSM-103-01-L-SV

AGND

TEST_0.2V

100

R38

10μF

C26

AGND

100

R44

10μF

C41

AGND

REFOUT

4.5V

AGND

0.01 F

μ

C35

AGND

AGND

1

2

3

J6

TSM-103-01-L-SV

AGND

1 F

μ

C36

AGND

0

R52

5.2V

1 F

μ

C40

AGND

1 F

μ

C38

AGND

EVM_DVDD

REF_BUF

0.01μF

C34

AGND

0.01 F

μ

C37

10μF

C28

DNP

10μF

C29

DNP

10μF

C27

DNP

10μF

C24

DNP

AGND

AGND

AGND

AGND

10.0k

R28

REFOUT

10μF

C23

AGND

22μF

C20

AGND

1.00

R33

3

1

2

4

6

5

V+

V-

U9
OPA625IDBVR

10μF

C45

AGND

5.2V

1.00k

R54

1.00k

R55

1 F

μ

C43

AGND

1000pF

C42

OPA625_CM_N

2.21

R50

3

1

2

4

6

5

V+

V-

U10
OPA625IDBVR

10μF

C39

AGND

5.2V

1.00k

R41

1.00k

R45

1 F

μ

C32

AGND

1000pF

C31

OPA625_CM_P

2.21

R48

0

R53

DNP

EVM_DVDD

3

1

2

4

6

5

V+

V-

U6
OPA625IDBVR

DNP

AGND

AGND

10μF

C15

DNP

AGND

5.2V

1.00k

R29

DNP

AGND

D2

CUS05S40,H3F

0.22μF

C19

DNP

499

R30

DNP

4.75

R31

DNP

5.2V

10pF

C18

DNP

2.49k

R22

DNP

0.1μF

C9

DNP

AGND

4.99k

R17

DNP

AGND

1

2

3

4

5

U5
OPA378AIDBVT

DNP

0.1μF

C17

DNP

5.2V

AGND

AGND

0.1μF

C10

DNP

30.0k

R27

DNP

REF_BUF

1.00k

R16

DNP

REFOUT

5V

1 F

μ

C12

DNP

AGND

ADC and Drivers

COMPONENTS MARKED 'DNP' SHOULD NOT BE POPULATED.

PA006

1

1

3

3

5

5

7

7

9

9

11

11

13

13

15

15

17

17

19

19

21

21

23

23

25

25

27

27

29

29

31

31

33

33

35

35

37

37

39

39

41

41

43

43

45

45

47

47

49

49

51

51

53

53

55

55

57

57

59

59

2

2

4

4

6

6

8

8

10

10

12

12

14

14

16

16

18

18

20

20

22

22

24

24

26

26

28

28

30

30

32

32

34

34

36

36

38

38

40

40

42

42

44

44

46

46

48

48

50

50

52

52

54

54

56

56

58

58

60

60

GND

MP1

GND

MP2

GND

MP3

GND

MP4

J5

QTH-030-01-L-D-A

10μF

C51

10μF

C50

AGND

AGND

-0.2V

-0.2V

-0.2V

-0.2V

0

R18

DNP

AGND

5V

5015

TP7

5.2V

RST

0

R62

DNP

AGND

1
2
3

J8

TSM-103-01-L-SV

SDO-2

18

CONVST

1

RST

2

DVDD

16

REFM

4

SDO-3

17

REFBUFOUT

5

NC

6

DECAP

14

GND

15

DECAP

13

REFIN

3

EP

25

SDO-1

19

SDO-0

20

RVS

21

SDI

22

SCLK

23

CS

24

REFP

7

REFM

8

AINP

9

AINM

10

RVDD

12

GND

11

U11

ADS8910BIRGER

Bill of Materials, PCB Layout, and Schematics

www.ti.com

32

SBAU268 – July 2016

Submit Documentation Feedback

Copyright © 2016, Texas Instruments Incorporated

ADS8910BEVM-PDK

Figure 20. Schematic Diagram (Page 1) of the ADS8910BEVM PCB

Summary of Contents for ADS8910B

Page 1: ...PDK This kit is an evaluation platform for the ADS8910B which is an 18 bit 1 MSPS fully differential input successive approximation register SAR analog to digital converter ADC that features an enhanc...

Page 2: ...Materials PCB Layout and Schematics 25 7 1 Bill of Materials 25 7 2 PCB Layout 28 7 3 Schematics 31 List of Figures 1 OPA625 Differential Input Driving Path 6 2 Common Mode Selection Jumpers 7 3 ADS8...

Page 3: ...ted ADS8910BEVM PDK 1 J7 and J3 SMA Connectors Description 5 2 J4 and J6 Headers Description 5 3 J1 and J2 Configuration per Input Common Mode 7 4 External Source Requirements for Evaluation of the AD...

Page 4: ...USB cable to connect to a computer 1 1 ADS8910BEVM PDK Features The ADS8910BEVM PDK includes the following features Hardware and software required for diagnostic testing as well as accurate performan...

Page 5: ...ce must be differential or balanced keeping the negative and positive inputs to the board symmetric such that Vs Vs at any given time Table 1 J7 and J3 SMA Connectors Description Pin Number Signal Des...

Page 6: ...ally the two OPA625 operational amplifiers drive the ADS8910B differential inputs with 2 2 impedance up to 7 MHz that properly drives the low dynamic impedance of the ADC inputs at 1 MSPS Figure 1 OPA...

Page 7: ...to the 1 k of the input resistor thereby moving the output common mode of the OPA625 amplifiers To compensate for this change in output common mode R1 can be modified according to the particular exte...

Page 8: ...ng conditions at full device throughput of 1 MSPS 3 Digital Interfaces As noted in Section 1 the EVM interfaces with the PHI that in turn communicates with the computer over USB There are two devices...

Page 9: ...inimize inductance along the load current path 5 ADS8910BEVM PDK Initial Setup This section explains the initial hardware and software setup procedure that must be completed for the proper operation o...

Page 10: ...yright 2016 Texas Instruments Incorporated ADS8910BEVM PDK Figure 3 ADS8910B Software Installation Prompts As a part of the ADS8910BEVM GUI installation a prompt with a Device Driver Installation will...

Page 11: ...S8910BEVM PDK NOTE A notice may appear on the screen stating that Widows cannot verify the publisher of this driver software Select Install this driver software anyway The ADS8910BEVM PDK requires Lab...

Page 12: ...2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK After these installations verify that C Program Files x86 Texas Instruments ADS8910BEVM is as shown in...

Page 13: ...er and evaluating the performance of the ADS8910B 1 Connect the ADS8910BEVM to the PHI Install the two screws as indicated in Figure 7 2 Use the USB cable provided to connect the PHI to the computer L...

Page 14: ...on www ti com 14 SBAU268 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK 3 Launch the ADS8910BEVM GUI software as shown in Figure 8 Figure 8 Launc...

Page 15: ...options in this pane allow the user to choose from various SPI and multiSPI host interface options available on the ADS8910B The host always communicates with the ADS8910B using the standard SPI prot...

Page 16: ...DC sampling rate can differ from the target value depending on the applied SCLK frequency and selected Device Mode and the closest match achievable is displayed This pane therefore allows the user to...

Page 17: ...ues on this page correspond to the Host Configuration Settings that enable ADC sampling at the maximum sampling rate specified for the ADC The register values can be edited by double clicking the corr...

Page 18: ...rive circuits The user can trigger a capture of the data of the selected number of samples from the ADS8910B as per the current interface mode settings using the capture button as indicated in Figure...

Page 19: ...in Table 4 Table 4 External Source Requirements for Evaluation of the ADS8910B Specification Description Specification Value Signal frequency 2 kHz External source type Balanced differential External...

Page 20: ...ncludes windowing options that are required to mitigate the effects of non coherent sampling this discussion is beyond the scope of this document The 7 Term Blackman Harris window is the default optio...

Page 21: ...erated by the various sources connected to the ADC when measuring a dc signal The cumulative effect of noise coupling to the ADC output from sources such as the input drive circuits the reference driv...

Page 22: ...d the external source must meet the requirements in Table 5 Table 5 External Source Requirements for ADS8910B Evaluation Specification Description Specification Value Signal frequency 2 kHz External s...

Page 23: ...a low noise dc differential input to the ADC Set the parameters for the Reference Settling test The various test parameters are Samples This parameter defines the number of consecutive samples to be c...

Page 24: ...ADS8910BEVM PDK Operation www ti com 24 SBAU268 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK Figure 15 Reference Settling Tool...

Page 25: ...3 ZRB18AD71A106KE01L 5 C13 C39 C45 C50 C51 MuRata CAP CERM 10 F 10 V 10 X7T 0603 GRM1885C1H102FA01J 3 C16 C31 C42 MuRata CAP CERM 1000 pF 50 V 1 C0G NP0 0603 C2012X7S1A226M125AC 1 C20 TDK CAP CERM 22...

Page 26: ...nt Compact SMT 5015 2 TP6 TP7 Keystone Test Point Miniature SMT REF5050AIDGKT 1 U1 Texas Instruments Low Noise Very Low Drift Precision Voltage Reference 40 to 125 degC 8 pin VSSOP DGK Green RoHS no S...

Page 27: ...u Co Ltd RES 4 99 k 0 1 0 1 W 0603 RG1608P 2491 B T5 0 R22 Susumu Co Ltd RES 2 49 k 0 1 0 1 W 0603 ERJ 3RQFR22V 0 R25 R26 Panasonic RES 0 22 ohm 1 0 1W 0603 RG1608P 303 B T5 0 R27 Susumu Co Ltd RES 30...

Page 28: ...s www ti com 28 SBAU268 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK 7 2 PCB Layout Figure 16 through Figure 19 illustrate the EVM PCB layout F...

Page 29: ...com Bill of Materials PCB Layout and Schematics 29 SBAU268 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK Figure 17 ADS8910BEVM PCB Layer 2 GND...

Page 30: ...Materials PCB Layout and Schematics www ti com 30 SBAU268 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK Figure 18 ADS8910BEVM PCB Layer 3 Power...

Page 31: ...Schematics 31 SBAU268 July 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ADS8910BEVM PDK Figure 19 ADS8910BEVM PCB Layer 4 Bottom Layer 7 3 Schematics Figure 20 thro...

Page 32: ...F C35 AGND AGND 1 2 3 J6 TSM 103 01 L SV AGND 1 F C36 AGND 0 R52 5 2V 1 F C40 AGND 1 F C38 AGND EVM_DVDD REF_BUF 0 01 F C34 AGND 0 01 F C37 10 F C28 DNP 10 F C29 DNP 10 F C27 DNP 10 F C24 DNP AGND AGN...

Page 33: ...DNP AGND 1 F 0603 C5 AGND AGND 47 F C3 AGND 5 2V 0 1 R2 AGND 1 F C2 AGND 5 2V 0 22 R8 10 F C4 AGND 5016 TP4 REFOUT 10 0k R5 20 0k R15 20 0k R10 AGND J2 87898 0204 AGND J1 87898 0204 280k R1 1 F C6 AGN...

Page 34: ...B Logo3 FCC disclaimer Rafael Ordonez H5 1891 H8 1891 H6 1891 H7 1891 H1 PMSSS 440 0025 PH H2 PMSSS 440 0025 PH H3 PMSSS 440 0025 PH H4 PMSSS 440 0025 PH LOGO PCB Logo2 Texas Instruments Label Assembl...

Page 35: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Page 36: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Page 37: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Page 38: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Page 39: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

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