Texas Instruments ADS9120EVM-PDK User Manual

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This user's guide describes the characteristics, operation, and use of the ADS9120 evaluation module

(EVM) performance demonstration kit (PDK). This kit is an evaluation platform for the ADS9120, which is

an 16-bit, 2.5-MSPS, fully-differential input, successive approximation register (SAR) analog-to-digital

converter (ADC) that features an enhanced serial multiSPI

evaluation of the ADS9120 device with hardware, software, and computer connectivity through the

universal serial bus (USB) interface. This user's guide includes complete circuit descriptions, schematic

diagrams, and a bill of materials.

The following related documents are available through the Texas Instruments web site at www.ti.com.

multiSPI is a registered trademark of Texas Instruments.

Microsoft, Windows are registered trademarks of Microsoft Corporation.

LabVIEW is a trademark of National Instruments.

All other trademarks are the property of their respective owners.

SBAU262 – August 2016

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Summary of Contents for Texas Instruments ADS9120EVM-PDK

Page 1 ADS9120 device with hardware, software, and computer connectivity through the universal serial bus (USB) interface. This user's guide includes complete circuit descriptions, schematic diagrams, and a bill of materials. The following related documents are available through the Texas Instruments web site at www.ti.com. Related Documentation Device...
Page 2: Table Of Contents
Schematic Diagram (Page 1) of the ADS9120EVM PCB ............. Schematic Diagram (Page 2) of the ADS9120EVM PCB ............. Schematic Diagram (Page 3) of the ADS9120EVM PCB List of Tables ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 3 J1 and J2 Configuration per Input Common-Mode ............. External Source Requirements for Evaluation of the ADS9120 ............. External Source Requirements for ADS9120 Evaluation ..................ADS9120EVM Bill of Materials SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 4: Overview
Overview The ADS9120EVM-PDK is a platform for evaluating the performance of the ADS9120 SAR ADC, which is a fully-differential input, 16-bit, 2.5-MSPS device. The evaluation kit includes the ADS9120EVM board and the precision host interface (PHI) controller board that enables the accompanying computer software to communicate with the ADC over USB for data capture and analysis.
Page 5: Analog Interface
ADC inputs dynamically low impedance. Thus, the evaluation board has low impedance on board drivers that maintain ADC performance with maximum loading at the full device throughput of 2.5-MSPS for signal. SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 6: Opa625 Differential Input Driving Path
) between 0 Ω and 32 Ω, with 0-V common mode. R1 must be changed to compensate for larger external source impedance (R ) values or for 2.5-V external source common-mode, as explained in Section 2.2.3. ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 7: Common-Mode Selection Jumpers
+ R s•À + R Equation 1 Equation 2 the value of R1 must be calculated to satisfy Equation 2.5 V Q ADC_V Q 2.6 V SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 8: Onboard Adc Reference
USB. There are two devices on the EVM with which the PHI communicates: the ADS9120 ADC (over SPI or multiSPI) and the EEPROM (over I C). The EEPROM comes pre-programmed with the information required to configure and initialize the ADS9120EVM-PDK platform. Once the hardware is initialized, the EEPROM is no longer used. multiSPI for ADC Digital IO ®...
Page 9: Power Supplies
ADS9120EVM-PDK Initial Setup This section explains the initial hardware and software setup procedure that must be completed for the proper operation of the ADS9120EVM-PDK. Default Jumper Settings Jumper settings are determined by common mode and source impedance of the external source that provides a differential signal to the board.
Page 10: Ads9120 Software Installation Prompts
As a part of the ADS9120EVM GUI installation, a prompt with a Device Driver Installation will appear on the screen. Click Next to proceed. Figure 5. Device Driver Installation Wizard Prompts ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 11: Labview Run-Time Engine Installation
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 ADS9120EVM-PDK requires LabVIEW™ Run-Time Engine may prompt for the installation of this software, if not already installed.
Page 12: Ads9120Evm Folder Post-Installation
ADS9120EVM-PDK Initial Setup www.ti.com After these installations, verify that C:\Program Files (x86)\Texas Instruments\ADS9120EVM is as shown Figure Figure 7. ADS9120EVM Folder Post-Installation ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 13: Ads9120Evm-Pdk Operation
ADS9120EVM-PDK Operation www.ti.com ADS9120EVM-PDK Operation The following instructions are a step-by-step guide to connecting the ADS9120EVM-PDK to the computer and evaluating the performance of the ADS9120: 1. Connect the ADS9120EVM to the PHI. Install the two screws as indicated in Figure 2.
Page 14: Launch The Evm Gui Software
ADS9120EVM-PDK Operation www.ti.com 3. Launch the ADS9120EVM GUI software, as shown in Figure Figure 9. Launch the EVM GUI Software ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 15: Evm Gui Global Settings For Adc Control
ADS9120 datasheet (SBAS710). The selected data capture protocol is summarized in the Protocol Selected indicator box. SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 16 ADC RESETs to the RESET configuration explained in the datasheet (SBAS710). The GUI also updates the Interface Configuration settings and the Register Map to reflect the device RESET state. ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 17: Register Map Configuration Tool
The effect of changes in the register value reflect on the ADS9120 device on ADS9120EVM-PDK based on the Update Mode selection, as described in Section 6.1.
Page 18: Time Domain Display Tool
Switching pages to any of the Analysis tools described in the subsequent sections, triggers calculations to be performed on the same set of data. Figure 12. Time Domain Display Tool Options ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 19: Spectral Analysis Tool
–140 dBc to analyze noise-free harmonics and spurs in the order of –120 dBc. Such analysis requires at least 262144 samples. SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 20: Spectral Analysis Tool
24-bit ADC. Note that the None option corresponds to not using a window (or using a rectangular window) and is not recommended. ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 21: Histogram Tool
The histogram corresponding to a dc input is displayed on clicking on the Capture button, as shown in Figure Figure 14. Histogram Analysis Tool SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 22: Linearity Analysis Tool
1024. NOTE: This analysis can take a couple of minutes to run and the evaluation board must remain undisturbed during the complete duration of the analysis. ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 23: Linearity Analysis Tool
ADS9120EVM-PDK Operation www.ti.com Figure 15. Linearity Analysis Tool SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 24: Bill Of Materials, Pcb Layout, And Schematics
LBL1 Brady Thermal Transfer Printable Labels, 0.650" W x 0.200" H - 10,000 per roll RG2012P-2803-B-T5 Susumu Co Ltd RES, 280 k, 0.1%, 0.125 W, 0805 ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 25 CAP, CERM, 22 µF, 10 V, +/- 20%, X7S, 0805 GRM188R71A105KA61D MuRata CAP, CERM, 1uF, 10V, +/-10%, X7R, 0603 GRM21BR71A106KE51L MuRata CAP, CERM, 10 µF, 10 V, +/- 10%, X7R, 0805 SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 26 RES, 4.7, 5%, 0.125 W, 0805 LM7705MM/NOPB Texas Instruments Low Noise Negative Bias Generator, 8-pin Mini SOIC, Pb-Free REF6025AIDGK Texas Instruments High-Precision Voltage Reference with Integrated High-Bandwidth Buffer, DGK0008A ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 27: Pcb Layout
Bill of Materials, PCB Layout, and Schematics www.ti.com PCB Layout Figure 16 through Figure 19 illustrate the EVM PCB layout. Figure 16. ADS9120EVM PCB Layer 1: Top Layer SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 28: Ads9120Evm Pcb Layer 2: Gnd Plane
Bill of Materials, PCB Layout, and Schematics www.ti.com Figure 17. ADS9120EVM PCB Layer 2: GND Plane ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 29: Ads9120Evm Pcb Layer 3: Power Planes
Bill of Materials, PCB Layout, and Schematics www.ti.com Figure 18. ADS9120EVM PCB Layer 3: Power Planes SBAU262 – August 2016 ADS9120EVM-PDK Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 30: Schematics
Bill of Materials, PCB Layout, and Schematics www.ti.com Figure 19. ADS9120EVM PCB Layer 4: Bottom Layer Schematics Figure 20 through Figure 22 illustrate the EVM schematics. ADS9120EVM-PDK SBAU262 – August 2016 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated...
Page 31: Schematic Diagram (Page 1) Of The Ads9120Evm Pcb
Version control disabled Assembly Variant: Sheet: 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 Drawn By: Rafael Ordonez File: PA006C_Schematic1.SchDoc...
Page 32: Schematic Diagram (Page 2) Of The Ads9120Evm Pcb
Version control disabled Assembly Variant: Sheet: 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 Drawn By: Rafael Ordonez File: PA006C_Schematic2.SchDoc...
Page 33: Schematic Diagram (Page 3) Of The Ads9120Evm Pcb
Version control disabled Assembly Variant: Sheet: 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 Drawn By: Rafael Ordonez File: PA006C_Hardware.SchDoc...
Page 34 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
Page 35 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Page 36 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】開発キットの中には技術基準適合証明を受けていないものがあります。技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・インスツルメンツ株式会社東京都新宿区西新宿６丁目２４番１号西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
Page 37 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated...
Page 38 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.

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Ads9120