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User's Guide

SLAU160 – July 2005

ADS8372EVM

This user's guide describes the characteristics, operation, and use of the ADS8372
16-bit, 600 kHz, high speed, serial interface Analog-to-Digital converter Evaluation
Board (EVM). A complete circuit description, schematic diagram, and bill of materials
are included.

The following related documents are available on the TI web site at

www.ti.com

.

Data Sheets:

Literature Numbers:

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

...............................................................................................................

5

6

ADS8372EVM Bill Of Materials

............................................................................................

7

8

Board Layers

.................................................................................................................

9

9

Schematics

..................................................................................................................

11

List of Figures

1

Input Buffer Circuit

...........................................................................................................

3

2

Top Layer

.....................................................................................................................

9

3

Power Plane

..................................................................................................................

9

4

Ground Plane

...............................................................................................................

10

5

Bottom Layer

................................................................................................................

10

List of Tables

1

Analog Input Connector

.....................................................................................................

2

2

Jumper Setting

...............................................................................................................

4

3

Pinout for Serial Control Connector P2

...................................................................................

4

4

Power Supply Test Points

..................................................................................................

5

5

Power Connector (J3) Pin Out

.............................................................................................

5

7

ADS8372EVM Bill of Materials

.............................................................................................

7

SLAU160 – July 2005

ADS8372EVM

1

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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