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ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK,
This user's guide describes the characteristics, operation, and use of the ADS1147EVM and
ADS1247EVM, both by themselves and as part of the ADS1147EVM-PDK or ADS1247EVM-PDK. These
evaluation modules (EVMs) are evaluation boards for the ADS1247, a 24-bit multi-channel, delta-sigma,
analog-to-digital converter (ADC), and the ADS1147, a 16-bit version of the ADS1247. This EVM allows
evaluation of all aspects of the ADS1147 or ADS1247 devices. Complete circuit descriptions, schematic
diagrams, and bill of materials are included in this document.
The following related documents are available through the Texas Instruments web site at
http://www.ti.com.
ADCPro is a trademark of Texas Instruments.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
2
I
C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
SBAU148B – June 2009 – Revised May 2011
Submit Documentation Feedback
ADS1247EVM (Left) and ADS1247EVM-PDK (Right)
EVM-Compatible Device Data Sheets
Device
ADS1147
ADS1247
REF5020
OPA227
TPS3836L30
TPS79225
TPS72325
SN74LVC2G157
PCA9535
ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK
Copyright © 2009–2011, Texas Instruments Incorporated
SBAU148B – June 2009 – Revised May 2011
ADS1247EVM-PDK
Literature Number
SBAS453
SBAS426A
SBOS410C
SBOS110A
SLVS292D
SLVS337B
SLVS346B
SCES207K
SCPS129I
User's Guide
1
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Related Manuals for Texas Instruments ADS1147EVM
Summary of Contents for Texas Instruments ADS1147EVM
- Page 1 ADS1247EVM-PDK ADS1247EVM (Left) and ADS1247EVM-PDK (Right) This user's guide describes the characteristics, operation, and use of the ADS1147EVM and ADS1247EVM, both by themselves and as part of the ADS1147EVM-PDK or ADS1247EVM-PDK. These evaluation modules (EVMs) are evaluation boards for the ADS1247, a 24-bit multi-channel, delta-sigma, analog-to-digital converter (ADC), and the ADS1147, a 16-bit version of the ADS1247.
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Page 2: Table Of Contents
..................J4 Configuration: Power Options ..................REF1 Reference Voltage Options ......................List of Switches ............... ADS1147EVM/ADS1247EVM Bill of Materials SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 3: Evm Overview
Complete control of board settings • Easily expandable with new analysis plug-in tools from Texas Instruments For use with a computer, the ADS1147EVM-PDK or ADS1247EVM-PDK is available. This kit combines the ADS1147/ADS1247EVM board with the MSP430-based MMB3 motherboard, and includes ADCPro™ software for evaluation. -
Page 4: Analog Interface
In/Out None Digital ground J7.11 None ADS1247 SPI data in J7.12 GPIO3 PWRSEL High Selects ±2.5V or +5V supply SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 5: Power Supplies
All of the power supplies (AVDD, AVSS, and DVDD) have corresponding jumpers on J10 that can be replaced with a current meter to measure the respective supply currents. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 6: Voltage Reference
Switch S1 should not be set to AVDD. The internal reference voltage can be measured between testpoints TP3 (Int REF) and TP5 (REFCOM). SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 7: Clock Source
5-6K Interface HPA-MCU Interface boards available from Texas Instruments, or the MMB3 if purchased as part of the ADS1247EVM-PDK. For a list of compatible interface and/or accessory boards for the EVM or the ADS1247, see the relevant product folder on the TI web site. -
Page 8: Ads1247Evm-Pdk Kit Operation
Step 5. Connect the ADS1247EVM-PDK to the computer with a USB cable. Step 6. Run the ADCPro software. Each task is described in the subsequent sections of this document. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 9: Virtual Com Port Installer
Setup and follow the on-screen prompts. You may be notified that the driver is not digitally signed. If this message appears, select Continue Anyway and proceed. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 10: Mmb3 Switch Locations
Set switch SW4 to the right. • Set the DAC switch (SW5) to the OUT position (to the right). Figure 6. MMB3 Switch Locations SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 11: Connecting Ads1247Evm To Mmb3
Step 4. Set the jumpers and switches on the ADS1247EVM as shown in Figure 3 (note that these settings are the factory-configured settings for the EVM). SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 12: Mmb3 Block Diagram
MMB3 except as part of an EVM kit. For schematics or other information about the MMB3, contact Texas Instruments. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 13: Adcpro Software Start-Up Display Window
Step 1. Start the software by selecting ADCPro from the Windows Start menu. The screen in Figure 9 appears. Figure 9. ADCPro Software Start-up Display Window SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 14: Ads1247Evm-Pdk Plug-In Display Window
You will see a series of messages in the status area indicating this action. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 15: Connection Timeout
MMB3. If the firmware needs to be loaded, you will see a screen similar to that shown in Figure Figure 12. Firmware Download Message Box SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 16: Firmware Download Progress Indicator
MMB3, so this operation should only need to be performed once. Figure 13. Firmware Download Progress Indicator SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 17: Evaluating Performance With The Adcpro Software
The ADS1247EVM-PDK plug-in has a tabbed interface, with five different tabs to control the functions of the ADS1247. These tabs are described below. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 18: Ads1247 Multiplexer
PGA. Note that you may select the same input for both the positive (AINP) and negative (AINN) input; this configuration is often selected to perform a noise test on the ADC itself. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... - Page 19 When an input is selected as a GPIO, its label turns green and the IDAC controls for that channel are disabled. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated...
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Page 20: Enabling Vbias On A Channel
The Power Down control powers down the ADS1247. Note that no data can be collected if the Power Down button is activated. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 21: Gpio Tab
GPIOs are enabled as inputs. Pressing the Input button reads the state of the enabled inputs; if the input is high, the corresponding light turns green. Figure 18. GPIO Tab SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 22: Gpio Set To Output Mode
To make the GPIO an output, the toggle switch can be switched to output mode, as shown in Figure Figure 19. GPIO Set to Output Mode SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 23: Gpio Output Set To High
(as Figure 19 shows), the GPIO is in a low state. Figure 20. GPIO Output Set to High SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 24: Power & Ref Tab
21. This tab controls the selection of the power-supply mode, reference sources, and IDACs. Figure 21. Power & Ref Tab SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... - Page 25 Analog inputs or turn the IDAC off. If the AIN button is selected, this option enables the corresponding IDAC controls on the I/O Config tab. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated...
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Page 26: Cal Tab
New fields, then pressing the Set button. You may read the values at any time by pressing the Read button. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 27: About Tab
The ID indicator shows the value of the ID [3:0] bits in the ADS1247 ID register. The Notes indicator may show relevant notes about the plug-in or firmware code, if there are any. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 28: Progress Bar While Collecting Data
For more information on testing analog-to-digital converters in general and using ADCPro and Test plug-ins, refer to the ADCPro User Guide. SBAU148B – June 2009 – Revised May 2011 ADS1147EVM, ADS1247EVM, ADS1147EVM-PDK, ADS1247EVM-PDK Submit Documentation Feedback Copyright © 2009–2011, Texas Instruments Incorporated... -
Page 29: Schematics And Layout
If ADCPro stops responding while the ADS1247EVM-PDK is connected, try unplugging the USB cable from the PDK. Unload and reload the plug-in before reapplying power to the PDK. Schematics and Layout Schematics for the ADS1147EVM and ADS1247EVM are appended to this user's guide. The bill of materials is provided in Table 10.1 Bill of Materials... - Page 30 Schematics and Layout www.ti.com Table 7. ADS1147EVM/ADS1247EVM Bill of Materials (continued) Item No. Value Ref Des Description Vendor Part Number Resistor, Chip Array Four Independent Bus 100kΩ, 5%, 1/16W, SMD 10kΩ Resistor, Thick Film Chip 10kΩ, Panasonic ERJ-3GEYJ103V 5%, 1/10W, Size = 0603 2kΩ...
- Page 31 J3A (TOP) = SAM_TSM-105-01-L-DV-P 10uF J3B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K TPS72325DBV 0.1uF PRECISION ANALOG PRODUCTS HIGH-PERFORMANCE ANALOG DIVISION 100K SEMICONDUCTOR GROUP 5411 EAST WILLIAMS BOULEVARD, TUCSON, AZ 85711 USA ADS1147EVM FRC_FDN337N TITLE FRC_FDN302P ENGINEER RICK DOWNS ADS1247EVM DRAWN BY BOB BENJAMIN DOCUMENT CONTROL NO.
- Page 32 Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
- Page 33 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
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