Texas Instruments ADS8568EVM-PDK User Manual
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Texas Instruments ADS8568EVM-PDK User Manual

Texas Instruments ADS8568EVM-PDK User Manual

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User's Guide
ADS8568EVM-PDK Evaluation Module
This user's guide describes the operation and use of the ADS8568 evaluation module (EVM). The ADS8568 is
an 8-channel, simultaneous sampling, 16-bit successive approximation (SAR) analog-to-digital converter (ADC).
Each input channel on the device can support true bipolar input ranges up to ±12 V. The device includes
a programmable internal buffered voltage reverence. The ADC includes a serial SPI interface and a parallel
interface for data communication. Configuration of the device is achieved through simple static digital input pins
(hardware mode) or through communications to the SPI interface. This user's guide covers circuit description,
schematic diagram, and bill of materials for the ADS8568 circuit board.
SBAU193E – JUNE 2011 – REVISED MAY 2021
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ABSTRACT
Copyright © 2021 Texas Instruments Incorporated
ADS8568EVM-PDK Evaluation Module
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Summary of Contents for Texas Instruments ADS8568EVM-PDK

  • Page 1 (hardware mode) or through communications to the SPI interface. This user's guide covers circuit description, schematic diagram, and bill of materials for the ADS8568 circuit board. SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 2: Table Of Contents

    Table of Contents 1 EVM Overview..................................1.1 ADS8568EVM-PDK Kit Features............................1.2 ADS8568EVM Board Features ............................1.3 Related Documentation From Texas Instruments......................2 EVM Analog Interface................................5 2.1 ADC Supply, Input, Voltage Reference, and Digital Connections..................2.2 ADC Amplifier Drive ................................
  • Page 3 List of Tables Table 1-1. Related Documents..............................Table 6-1. Jumper Settings................................ Trademarks All trademarks are the property of their respective owners. SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 4: Evm Overview

    Low voltage supplies (AVDD, and DVDD) generated using USB power from the PHI controller. • Integrated or external voltage reference options available. 1.3 Related Documentation From Texas Instruments Related Documents lists devices that are used in this EVM and may be useful in related designs.

  • Page 5: Evm Analog Interface

    JP9 to “INT” for internal, or “EXT” for external. Figure 2-1 also illustrates the analog input signal and digital signal connections. Figure 2-1. ADC Signal and Supply Connection SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 6: Adc Amplifier Drive

    HVDD Bypass w/Amp 1.00k 10.0 OPA2211AIDDA 100nF 2200pF HVSS HVDD HVSS HVDD 100nF 100nF HVSS Figure 2-2. Amplifier Drive Circuit ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 7: Digital Interface

    DB15_SDOD DB14_SDOC DB14/SDO_C ~CS/~FS ~CS_~FS REFEN_~WR RESET1 REFEN/~WR RESET ~STBY ~PAR_SER ~STBY ~PAR/SER TSW-116-07-G-D Figure 3-1. PHI to ADS8568EVM connector SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 8: Static Signals For Ads8568

    ADS8568 for operation. The switch (S2) is a write protect and does not need to be changed for EVM operation. ID_PWR R112 10.0k 100nF EVM_ID_WP EVM_ID_SCL EVM_ID_SDA BR24G32FVT-3AGE2 100nF Figure 3-3. EEPROM for EVM ID ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 9: Power Supplies

    20.0k 20.0k 6.65k 6.65k 10uF Green Green Green Green HVDD HVSS HVDD HVSS Figure 4-2. Supply Connections and Led Monitors SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 10: Installing Ads8568Evm Software

    As a part of the ADS8568EVM GUI installation, a prompt with a Device Driver Installation (as shown in Figure 5-2) appears on the screen. Click Next to proceed. ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 11: Figure 5-2. Device Driver Installation Wizard Prompts

    The ADS8568EVM requires the LabVIEW™ run-time engine and may prompt for the installation of this software, as shown in Figure 5-3, if not already installed. Figure 5-3. LabVIEW Run-Time Engine Installation Verify that C:\Program Files (x86)\Texas Instruments\ADS8568EVM is as shown in Figure 5-4 after these installations. SBAU193E – JUNE 2011 – REVISED MAY 2021...

  • Page 12: Figure 5-4. Ads8568Evm Gui Folder Post-Installation

    Installing ADS8568EVM Software www.ti.com Figure 5-4. ADS8568EVM GUI Folder Post-Installation ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 13: Ads8568Evm Operation

    1. Set jumpers according to your requirements. Review Table 6-1 for details. Figure 6-1. ADS8568EVM Hardware Setup and LED Indicators SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 14: Jumper Settings For Ads8568Evm

    REF6025 2.5 V reference to the ADC reference input. Take care to make sure that the GUI settings for the voltage reference match this jumpers setting. ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 15: Evm Gui Global Settings For Adc Control

    The maximum clock is 45MHz and the maximum sampling rate is 494.5kHz for this device. Figure 6-3. Global Settings for ADC Control SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 16: Time Domain Display

    Switching pages to any of the Analysis tools described in the subsequent sections causes calculations to be performed on the same set of data. Figure 6-4. Time Domain Display ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 17: Frequency Domain Display

    24-bit ADC. The None option corresponds to not using a window (or using a rectangular window) and is not recommended. Figure 6-5. Frequency Domain Display SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 18: Histogram Display

    Figure 6-6, the histogram corresponding to a DC input is displayed on clicking the Capture button. Figure 6-6. Histogram Display ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 19: Modifying Hardware And Using Software To Evaluate Ads8548 And Ads8528

    EVM minutes to load the EEPROM. Connected has been updated to. Figure 7-2. Configure EEPROM and Software for New Device SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 20: A Bill Of Materials, Layout, And Schematic

    JP6, JP7, JP8, JP9 LBL1 Thermal Transfer Printable THT-14-423-10 Brady Labels, 0.650" W x 0.200" H - 10,000 per roll ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 21 I2C BUS EEPROM (2-Wire), BR24G32FVT-3AGE2 Rohm TSSOP-B8 36V, 1A, 4.17μVRMS, TPS7A4700RGWR Texas Instruments RF Low-Dropout (LDO) Voltage Regulator, RGW0020A (VQFN-20) SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 22 R77, R78, R102, R106 10.0k RES, 10.0 k, 1%, 0.1 W, AEC- RMCF0603FT10K0 Stackpole Q200 Grade 0, 0603 Electronics Inc ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 23: Layout

    All signals are on top and bottom. BOTTOM Figure A-1. Top and Bottom Layer ADS8568EVM SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 24: Figure A-2. Inner Power Layer

    Figure A-2. Inner Power Layer Inner Ground Layer shows the internal ground layer. All GND connections are to this layer using vias. ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 25: Figure A-3. Inner Ground Layer

    Bill of Materials, Layout, and Schematic Figure A-3. Inner Ground Layer SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 26: Schematic

    Bill of Materials, Layout, and Schematic www.ti.com A.3 Schematic Figure A-4. ADC schematic ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 27: Figure A-5. Adc Drive Schematic

    Bill of Materials, Layout, and Schematic HVDD HVSS Figure A-5. ADC Drive Schematic SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 28: Figure A-6. Power And Phi Connections Schmatic

    Bill of Materials, Layout, and Schematic www.ti.com AVDD DVDD Figure A-6. Power and PHI Connections schmatic ADS8568EVM-PDK Evaluation Module SBAU193E – JUNE 2011 – REVISED MAY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 29: B Revision History

    Changes from Revision D (February 2020) to Revision E (May 2021) Page • Added Evaluation Module to document title....................• Corrected spelling in Abstract section........................ SBAU193E – JUNE 2011 – REVISED MAY 2021 ADS8568EVM-PDK Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 30 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
  • Page 31 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
  • Page 32 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
  • Page 33 www.ti.com 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. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
  • Page 34 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 © 2019, Texas Instruments Incorporated...
  • Page 35 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products.IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...

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