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Texas Instruments DAC 760EVM Series User Manual
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Texas Instruments DAC 760EVM Series User Manual

Texas Instruments DAC 760EVM Series User Manual

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This user's guide describes the characteristics, operation, and use of the DAC7750 and DAC8750
(DACx750), and the DAC7760, and DAC8760 (DACx760) evaluation boards (EVMs). This user's guide
also discusses how to set up and configure the software and hardware, and reviews various aspects of
the program operation. Throughout this document, the terms DAC8760EVM, evaluation board, evaluation
module, and EVM are synonymous with the DACx760EVM and DACx760EVM. This user's guide also
includes information regarding operating procedures and input/output connections, an electrical schematic,
printed circuit board (PCB) layout drawings, and a parts list for the EVM.
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6.5
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Windows, Windows XP, Windows 7 are registered trademarks of Microsoft Corporation.
SPI is a trademark of Motorola Inc.
All other trademarks are the property of their respective owners.
SBAU205A - March 2013 - Revised November 2013
Submit Documentation Feedback
DACx760EVM and DACx750EVM
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Copyright © 2013, Texas Instruments Incorporated
SBAU205A - March 2013 - Revised November 2013
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DACx760EVM and DACx750EVM
User's Guide
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Summary of Contents for Texas Instruments DAC 760EVM Series

  • Page 1: Table Of Contents

    Windows, Windows XP, Windows 7 are registered trademarks of Microsoft Corporation. SPI is a trademark of Motorola Inc. All other trademarks are the property of their respective owners. SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 2 ..............R6 and C23 Ideal Values for Each Current Range ..................DACx760EVM Bill of Materials ..................DACx750EVM Bill of Materials DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 3: Overview

    Newer revisions may be available from the TI web site at http://www.ti.com/, or call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number.

  • Page 4: Evm Hardware Setup

    DAC. Note that DACx750 only features current outputs (IOUT), but also includes a test point for R3- SENSE. External Power Power VOUT DAC8760 (to SM-USB-DIG) IOUT Reference HART Input Selection Figure 2. DAC8760EVM Block Diagram DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 5: Signal Definitions Of J1 (10-Pin Male Connector Socket)

    SM-USB-DIG Platform. This platform is a general-purpose data- acquisition system that is used on several different Texas Instruments evaluation modules. The details of operation are included in SBOU098, SM-USB-DIG Platform User's Guide. The block diagram shown in Figure 3 is given as a brief overview of the platform.

  • Page 6: Evm Hardware Overview

    If JP8 is uninstalled, the +VSENSE to Vout connection must be provided off board, near the point of load. When JP9 is installed, the SM-USB-DIG provides DVDD. DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 7: Connecting The Hardware

    4. Make sure that the two connectors are completely pushed together; loose connections may cause intermittent operation. Figure 4. SM-USB-DIG Connection to the DAC8760EVM SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 8: Connecting The Usb Cable To The Sm-Usb-Dig Platform

    JP3, the DACx760 or DACx750 provide the DVDD supply. In this configuration, JP9 must be removed and no external supply can be connected. DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 9: Evm Features

    DACx750. Position 5-6 (top) connects the REFOUT pin. Position 3-4 (middle) connects to the output of U2. Position 1-2 (bottom) connects to J3. SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 10: R6 And C23 Ideal Values For Each Current Range

    DACx760 is in a bipolar voltage mode). Note that the CLR-SEL function can also be controlled through software. To enable this feature, JP7 must be in position 2-3 (left). DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 11: Evm Software Setup

    Figure 7. The DAC8760 software installer file then opens to begin the installation process. Figure 7. DAC8760EVM Installer SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 12: Dac8760Evm Install Path

    Figure Figure 9. DAC8760EVM Software License Agreements After accepting the Texas Instruments and National Instruments license agreements, the progress bar opens and shows the installation of the software. Once the installation process is completed, click Finish. DACx760EVM and DACx750EVM SBAU205A –...

  • Page 13: Evm Software Overview

    USB cable is plugged in, indicated by a Windows-generated confirmation sound. Figure 11. Communication Error with SM-USB-DIG Platform SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 14: Evm Software Features

    DACx760 or DACx750 successfully stored the data. More information about the individual registers can be found by pressing the Help w/ Reg button. DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 15: Resetting Dac8760

    DAC value is reset. The Output Enable toggle button sets the OUTEN bit in the control register to high, which enables either the I or V functions. SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 16: Dual Output Enable

    The Cal. Enable toggle button applies the gain and offset to the data register. After reading all registers, the DAC Value field shows the changes. Figure 18. Calibration Registers DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 17: Setting Slew Rates

    CLR-SEL pin is high or the register is set to midrange. Figure 21. CLRSEL Drop-Down Menu and Clear Button SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 18: Schematics, Pcb Assembly Drawings, And Bills Of Materials

    DVDD SPI_CLK SPI_SCLK VDUT SPI_DOUT SPI_MOSI CTRL/MEAS5 ALARM 0.1µF I2C_SDA CTRL/MEAS4 I2C_SCK SUPER MINI DIG FEMALE Figure 22. DACx760EVM Schematic DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 19: Dacx760Evm Assembly Drawing

    DACx760EVM Assembly Drawing Figure 23 shows the assembly drawing of the components for the DACx760EVM board. Figure 23. DACx760EVM Assembly Drawing SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 20: Dacx760Evm Bill Of Materials

    REF02BU SH-JP1-SH-JP9 Shunt, 100mil, Gold plated, Black 969102-0000-DA H1, H2, H3, H4 Bumpon, Hemisphere, 0.44 X 0.20, Clear SJ-5303 (CLEAR) DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 21: Dacx750Evm Board Schematic

    DVDD SPI_CLK SPI_SCLK VDUT SPI_DOUT SPI_MOSI CTRL/MEAS5 ALARM 0.1µF I2C_SDA CTRL/MEAS4 I2C_SCK SUPER MINI DIG FEMALE Figure 24. DACx750EVM Schematic SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 22: Dacx750Evm Assembly Drawing

    Schematics, PCB Assembly Drawings, and Bills of Materials www.ti.com DACx750EVM Assembly Drawing Figure 25 shows the assembly drawing for the DACx750EVM board Figure 25. DACx750EVM Assembly Drawing DACx760EVM and DACx750EVM SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 23: Dacx750Evm Bill Of Materials

    Shunt, 100mil, Gold plated, Black 969102-0000-DA JP4, SH-JP5, SH-JP6, SH-JP7 H1, H2, H3, H4 Bumpon, Hemisphere, 0.44 X 0.20, Clear SJ-5303 (CLEAR) SBAU205A – March 2013 – Revised November 2013 DACx760EVM and DACx750EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 24: Revision History

    Added Section 5.2.5, Dual Output Enable NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Revision History SBAU205A – March 2013 – Revised November 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...

  • Page 25: Regulatory Compliance Information

    Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
  • Page 26 FCC Interference Statement for Class B EVM devices 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. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • Page 27 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
  • Page 28 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2013, Texas Instruments Incorporated...

  • Page 29: Important Notice

    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.
  • Page 30 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments DAC8760EVM DAC7760EVM DAC7750EVM DAC8750EVM...

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