Texas Instruments ADS7043EVM-PDK User Manual
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Texas Instruments ADS7043EVM-PDK User Manual

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This user's guide describes the characteristics, operation and use of the ADS7043-EVM performance
demonstration kit (PDK). This kit is an evaluation platform for the ADS7043 low power, 12-bit pseudo-
differential successive approximation register (SAR) analog-to-digital converters (ADCs) that support
single-ended analog inputs.
This EVM eases the evaluation of the ADS7043 device with hardware and software for computer
connectivity through universal serial bus (USB). 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
http://www.ti.com.
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1
Overview
1.1
ADS7043EVM Features
1.2
ADS7043EVM-PDK Features
2
EVM Analog Interface
3
Power Supplies
4
Digital Interface
5
ADS7043EVM-PDK Initial Setup
5.1
Default Jumper Settings
5.2
Software Installation
Microsoft, Windows are registered trademarks of Microsoft Corporation.
All other trademarks are the property of their respective owners.
SBAU241 – November 2014
Submit Documentation Feedback
Table 1. Related Documentation
Device
OPA316
TPS79101
REG71055
TPS62080
TPS3836K33
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Copyright © 2014, Texas Instruments Incorporated
ADS7043EVM-PDK
Literature Number
SBOS703
SLVS325
SBAS221
SLVSAE8
SGLS322
Contents
User's Guide
SBAU241 – November 2014
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ADS7043EVM-PDK

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Summary of Contents for Texas Instruments ADS7043EVM-PDK

  • Page 1 This EVM eases the evaluation of the ADS7043 device with hardware and software for computer connectivity through universal serial bus (USB). 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 http://www.ti.com. Table 1. Related Documentation...
  • Page 2 List of Tables ..................... Related Documentation ....................Analog Input Connections ..................... AVDD Voltage Settings ..................... Voltage Supply Options ..................... Default Jumper Configurations ................... ADS7043EVM Bill of Materials ADS7043EVM-PDK SBAU241 – November 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 3 Overview The ADS7043EVM-PDK is a platform for evaluation of the ADS7043 ADC. The evaluation kit combines the ADS7043EVM board with a Simple Capture Card controller board. This controller card consists of a TI Sitara embedded microcontroller (AM3352) and a field-programmable gate array (FPGA). It provides an interface from the EVM to the computer through a universal serial bus (USB) port.

  • Page 4: Power Supplies

    V to 3.6 V. The DVDD operates from 1.65 V to 3.6 V, independent of the AVDD supply. The analog portion of the ADS7043EVM-PDK operates from a 5-V supply. The ADS7043EVM-PDK is configured to use the onboard regulated analog 5-V supply that in turn generates an AVDD analog supply using the low-noise TPS79101 LDO.

  • Page 5: Digital Interface

    The ADS7043EVM has clearly marked test points for all the SPI signals to allow observation of the interface signals using an oscilloscope. ADS7043EVM-PDK Initial Setup This section presents the steps required to set up the ADS7043EVM-PDK kit before operation. Default Jumper Settings A silkscreen plot detailing the default jumper settings is shown in...

  • Page 6: Software Installation

    Install the microSD Memory Cards on the Simple Capture Card Controller Board As mentioned in the previous section, the ADS7043EVM-PDK includes two microSD memory cards. One is installed on the microSD socket (P6) at the back of the Simple Capture Card as shown in Figure 3.
  • Page 7 Capture Card to boot properly. In addition to this the microSD card on the EVM contain Simple Capture Card firmware files (app and MLO files) and the ADS7043EVM-PDK software installation files inside the ADS7043 EVM V#.#.# folder. <V#.#.#> refers to the installation software version number, and increments with software installer releases.
  • Page 8 Step 4. After the installer begins, a welcome screen displays. Click Next to continue. Step 5. A prompt appears with the destination directory; select the default directory under: ...\Program Files(x86)\Texas Instruments\ADS7043evm\. ADS7043EVM-PDK SBAU241 – November 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 9 Figure 8. License Agreement and Start Installation Screens Step 8. A progress bar appears; this step takes a few minutes. Step 9. The progress bar is followed by an Installation Complete notice. SBAU241 – November 2014 ADS7043EVM-PDK Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 10 Figure 10. Windows 7 Driver Installation Warning NOTE: Driver installation prompts do not appear if the Simple Capture Card driver has been installed on your system previously. ADS7043EVM-PDK SBAU241 – November 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 11 Step 2. A computer restart may be required to finish the software installation. If prompted, restart the PC to complete the installation. Figure 11. Simple Capture Card Driver Installation Figure 12. Simple Capture Card Driver Completion SBAU241 – November 2014 ADS7043EVM-PDK Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 12 Step 1. Make sure the EVM kit is configured and powered up as explained in Section Step 2. Start the ADS7043 EVM software. Go to Start → All Programs →Texas Instruments → ADS7043 EVM and click ADS7043 EVM to run the software.
  • Page 13 GUI screen; a menu with different GUI pages appears. Click on the Data Capture option in the menu as shown in Figure Figure 14. Open the Data Capture Page on the GUI SBAU241 – November 2014 ADS7043EVM-PDK Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 14 SCLK: This control sets the clock frequency used by the SPI interface to capture data. By configuring the SCLK frequency, the sampling rate of the ADS7043 is set. The ADS7043EVM-PDK software supports SCLK frequencies of 3.2 MHz to 16 MHz. In case the input in this field is beyond the capability of the device, it will be adjusted to the nearest value that can be supported.

  • Page 15: Fft Analysis

    Any harmonic signal greater than this number is treated as noise in the performance calculations. The typical value used in this analysis is 9 as per the ADS7043 datasheet (SBAS608). SBAU241 – November 2014 ADS7043EVM-PDK Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 16: Histogram Analysis

    The Sigma indicator displays standard deviation of the data set. This value is equivalent to the RMS noise of the signal when analyzing a dc data set. ADS7043EVM-PDK SBAU241 – November 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 17: Offset Calibration

    This computed offset will remain fixed, unless the device is reset or there is a significant change in operating temperature or analog supply voltage. SBAU241 – November 2014 ADS7043EVM-PDK Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...

  • Page 18: Troubleshooting

    Troubleshooting Although the ADS7043EVM GUI rarely stops responding while the ADS7043EVM-PDK is connected, in case this does happen, unplug the USB cable from the EVM, unload the ADS7043EVM-PDK software, reconnect the ADS7043EVM-PDK to the PC and reload the ADS7043EVM software.

  • Page 19: Bill Of Materials

    Vishay-Dale CRCW040210K0FKED U1, U3 IC, OPAMP GP 10MHZ RRO, SC-70 Texas Instruments OPA316IDCK IC, 4-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE TEXAS INSTRUMENTS SN74AVC4T245RSVR VOLTAGE TRANSLATION AND 3-STATE OUTPUTS, UQFN-16 NANOPOWER SUPERVISORY CIRCUITS, 2.93 V, DBV0005A Texas Instruments TPS3837K33QDBV Single Output High PSRR LDO, 100 mA, Adjustable 1.2 to 5.5 V...

  • Page 20: Pcb Layout

    NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out; they are not intended to be used for manufacturing ADS7043EVM PCBs. Figure 20. ADS7043EVM PCB: Top Layer (L1) Figure 21. ADS7043EVM PCB: GND Layer (L2) ADS7043EVM-PDK SBAU241 – November 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 21 Bill of Materials, PCB Layout, and Schematics www.ti.com Figure 22. ADS7043EVM PCB: Power Layer (L3) Figure 23. ADS7043EVM PCB: Bottom Layer (L4) SBAU241 – November 2014 ADS7043EVM-PDK Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 22 Bill of Materials, PCB Layout, and Schematics www.ti.com Schematics The schematics for the ADS7043EVM are appended to the end of this user's guide. ADS7043EVM-PDK SBAU241 – November 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
  • Page 23 20.0k VDD_OPA 0.1µF 510pF SCLK 3V3_A 68 OHM OPA316IDCK CS_ADC VDD_ADC 3V3_SDCC AVDD VCCA VSS_OPA 0.1µF DVDD_ADC VCCB SCLK_ADC DVDD_ADC CS_ADC 0.1µF SCLK DVDD 1µF 49.9 SCLK_ADC SCLK 0.1µF AINP 1000pF 1µF 49.9 20.0k AINM VDD_OPA 0.1µF ADS7043IRUG 3V3_SDCC 1DIR SDO_ADC 20.0k 2DIR...
  • Page 24 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 25 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 26 【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】 本開発キットは技術基準適合証明を受けておりません。 本製品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 27 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 © 2014, Texas Instruments Incorporated...

  • Page 28: 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 29 Authorized Distribution Brand： Website： Welcome to visit www.ameya360.com Contact Us： Address： 401 Building No.5, JiuGe Business Center, Lane 2301, Yishan Rd Minhang District, Shanghai , China Sales： Direct +86 (21) 6401-6692 Email amall@ameya360.com 800077892 Skype ameyasales1 ameyasales2 Customer Service： Email service@ameya360.com Partnership：...

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