Texas Instruments ADS8402 - Manuals

Page 5 - Preface; Read This First

Related Documentation From Texas Instruments iii Preface Read This First About This Manual This users guide describes the characteristics, operation, and use of theADS8402/ADS8412 16-bit, high speed, parallel interface analog-to-digitalconverter evaluation board. A complete circuit description as we...

Page 7 - Contents

Contents v Contents 1 EVM Overview 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 8 - Figures

Contents vi Figures 1 - 1 Input Buffer Circuit 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 1 Top Layer—Layer 1 5-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 9 - Topic; Chapter 1

1-1 EVM Overview EVM Overview This chapter contains the features of the ADS8402/ADS8412. Topic Page 1.1 Features 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Introduction 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 10 - Introduction

Features 1-2 1.1 Features - Full-featured evaluation board for the high-speed ADS8402 (1.25 MSPS)and the ADS8412 (2 MSPS) high speed, 16-bit, single channel, parallelinterface SAR-type analog-to-digital converters. - Onboard signal conditioning - Onboard reference - Input and output digital buffer -...

Page 11 - Analog Interface; Chapter 2

2-1 Analog Interface Analog Interface The ADS8402/ADS8412EVM analog-to-digital converter has a unipolardifferential input. A unipolar differential input is a differential signal (invertingand noninverting input is 180 degrees out of phase) that is level shifted suchthat the signals levels are always...

Page 13 - Reference

Reference 2-3 Analog Interface Figure 2 - 1. Input Buffer Circuit 1 k Ω 1 k Ω +V CC V I 0.1 µ F 1 µ F 25 Ω (+) IN ( - ) IN 6800 pF 1 µ F 0.1 µ F 1 k Ω - V CC - + 60 pF 1 k Ω 60 pF V OCM 25 Ω - + THS4503 +2.048 V 2.2 Reference The EVM allows users to select from three reference sources. TheADS8402/AD...

Page 15 - Digital Interface; Chapter 3

3-1 Digital Interface Digital Interface The ADS8402/ADS8412 EVM is designed for easy interfacing to multipleplatforms. Samtec part numbers SSW-110-22-F-D-VS-K andTSM-110-01-T-DV-P provide a convenient dual row header/socketcombination at P2 and P3. Consult Samtec at www.samtec.com or 1 - 800 - SAMTE...

Page 17 - Power Supply Requirements; Chapter 4

4-1 Power Supply Requirements Power Supply Requirements The EVM accepts four power supplies. - A dual ± Vs dc supply for the dual supply op-amps. Recommend ± 7 Vdc supply. - A single +5-Vdc supply for the analog section of the board (A/D +Reference). - A single +5-V or +3.3-Vdc supply for the digita...

Page 19 - Using the EVM; Chapter 5

5-1 Using the EVM Using the EVM The ADS8402/ADS8412EVM serves three functions: 1) As a reference design 2) As a prototype board 3) As a software test platform Topic Page 5.1 As a Reference Board 5-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 As a Prototype ...

Page 21 - Schematic; Chapter 6

6-1 ADS8402/ADS8412EVM BOM, Layout, and Schematic ADS8402/ADS8412EVM BOM, Layout, and Schematic This chapter contains the ADS8402/ADS8412EVM bill of materials, thelayouts, and the schematics. Topic Page 6.1 ADS8402/ADS8412EVM Bill of Materials 6-2 . . . . . . . . . . . . . . . . . . . . . . . . . 6....

Page 22 - ADS9393EVM Bill of Materials

ADS9393EVM Bill of Materials 6-2 6.1 ADS9393EVM Bill of Materials Table 6 - 1 contains a complete bill of materials for the ADS8402/ADS8412EVM. The schematic diagram is also provided forreference. Contact the Product Information Center or e-mail [email protected] for questions regarding this ...

Page 29 - ti

1 2 3 4 56 A B C D 6 5 4 3 2 1 D C B A ti 12500 T I Boulevar d. Dallas , T exas 75243 TI TLE: SHEET: O F: FI LE: S IZ E: REV: Draw n By : Engi neer: Revis ion His tor y REV E CN Num ber Approved DOCUM ENT CONTROL # : 13 B lockD ia gr am .s ch A D A TE: 22-O ct -2003 A D S8402/ A D S8412EV M B lock D...