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This user's guide describes the characteristics, operation, and use of the ADS8028EVM-PDK. This
evaluation module and performance development kit (EVM-PDK) is an evaluation system for the
ADS8028, a 12-bit, 1-MSPS, 8-channel, successive approximation register (SAR) analog-to-digital
converter (ADC). The EVM-PDK allows evaluation of all aspects of the ADS8028 device.
This document includes an EVM QuickStart section, hardware and software details, bill of materials, and
schematic.
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 is a registered trademark of Microsoft, Corporation.
SPI is a trademark of Motorola.
All other trademarks are the property of their respective owners.
SBAU198 – April 2012
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Figure 1. ADS8028EVM-PDK
Table 1. EVM-Compatible Device Data Sheets
Device
ADS8028
OPA836
REF5025
Copyright © 2012, Texas Instruments Incorporated
User's Guide
SBAU198 – April 2012
ADS8028EVM-PDK
Literature Number
SBAS549
SLOS712
SBOS410
ADS8028EVM-PDK
1
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Summary of Contents for Texas Instruments ADS8028EVM-PDK
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Page 1: Ads8028Evm-Pdk
ADS8028EVM-PDK Figure 1. ADS8028EVM-PDK This user's guide describes the characteristics, operation, and use of the ADS8028EVM-PDK. This evaluation module and performance development kit (EVM-PDK) is an evaluation system for the ADS8028, a 12-bit, 1-MSPS, 8-channel, successive approximation register (SAR) analog-to-digital converter (ADC). -
Page 2: Table Of Contents
Contents ....................... EVM Overview ........................EVM Setup ..................ADS8028EVM Hardware Details ................Using the ADS8028EVM-PDK with ADCPro ..................Schematics and Bill of Materials List of Figures ......................ADS8028EVM-PDK .................. Jumper Locations and Default Settings ....................Headers and Pin Numbers .................. -
Page 3: Evm Overview
EVM Overview The ADS8028EVM-PDK is designed to evaluate the ADS8028. The ADS8028 is a 12-bit, 8-channel, multiplexed, SAR ADC, with a maximum throughput rate of 1 MSPS. The ADS8028 also offers an internal 2.5-V voltage reference and internal temperature sensor with 0.25°C resolution. The ADS8028EVM allows access to every pin of the converter and makes it easy to connect the ADS8028 SPI™-compatible serial... -
Page 4: Evm Setup
Only one of the digital interface jumpers (J-1, J-3, or J-5) should be shorted at a time to prevent large reverse currents that could potentially damage voltage regulators on the MMB0 motherboard. ADS8028EVM-PDK SBAU198 – April 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 5 EVM Setup www.ti.com ADS8028EVM-PDK Kit Operation To prepare to evaluate the ADS8028 with the ADS8028EVM-PDK, complete the following steps: 1. Verify the ADS8028EVM jumper settings from the factory as shown in Figure 2 and also listed in Table 2. Install ADCPro and the ADS8028EVM plug-in software. Complete hardware connections and driver...
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Page 6: Ads8028Evm Hardware Details
All ADS8028 analog inputs are single-ended and connect between the even and odd pins on the J-ANALOG header. All odd pins on J-ANALOG are connected to AGND. ADS8028EVM-PDK SBAU198 – April 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 7: Analog Input Header Schematic
NOTE: All odd pins on J-ANALOG connect to GND. Therefore, all analog input connections can be easily made across even and odd pin numbers (The channel 0 input connects to J- ANALOG.1-2, channel 1 input connects to J-ANALOG.3-4, etc.). SBAU198 – April 2012 ADS8028EVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 8: Digital Interface Header Schematic
DIGITAL.1 or J-DIGITAL.7 (default) through the J-CS jumper. Ensure that the J-CS jumper is positioned to route CS to J-DIGITAL.7 (short pins J-CS.1-2) for proper SPI communication when using the ADS8028EVM-PDK. Additionally, the S1 push-button switch allows the user to manually reset and power- down the ADS8028 and OPA836 op amps on the ADS8028EVM while the button is held. -
Page 9: Power Header Schematic
The absolute maximum supply voltage of the OPA836 limits the maximum analog supply voltage of the ADS8028EVM to 5.5 V. The digital supply voltage should not exceed the analog supply voltage. SBAU198 – April 2012 ADS8028EVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 10: Evm Voltage Reference Schematic
Providing an external source prior to this communication draws additional current from the external source. The ADS8028 internal protection circuitry limits this current to 20 mA. ADS8028EVM-PDK SBAU198 – April 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 11: Using The Ads8028Evm-Pdk With Adcpro
Using the ADS8028EVM-PDK with ADCPro www.ti.com Using the ADS8028EVM-PDK with ADCPro This section covers the use of the ADS8028EVM-PDK plug-in for ADCPro. For general ADCPro software use and instructions, refer to the ADCPro User's Guide. The ADS8028EVM-PDK plug-in for ADCPro provides complete control over all ADS8028 settings. It... -
Page 12: Adcpro: Channel Selection Tab
Using the ADS8028EVM-PDK with ADCPro www.ti.com Channel Selection Tab The ADS8028 can acquire data from one to eight channels, sequentially. The Channel Select tab provides the control to select which channels are sampled. A channel is selected to be sampled if a check mark is seen in the box corresponding to the channel number. -
Page 13: Schematics And Bill Of Materials
Hazardous Substances (RoHS) Directive. Some part numbers may be either leaded or RoHS. Verify that purchased components are RoHS-compliant. (For more information about TI's position on RoHS compliance, see the Design Support section at http://www.ti.com.) SBAU198 – April 2012 ADS8028EVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... -
Page 14: Ads8028Evm Bill Of Materials
OPA836IDBVT — IC, Precision Voltage Reference, 2.5V, SO-8 Texas Instruments REF5025AID — IC, EEPROM, 256KBIT, 400KHZ, TSSOP-8 Microchip 24AA256-I/ST Technology — — Shunt, 100-mil, Black 969102-0000-DA ADS8028EVM-PDK SBAU198 – April 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated... - Page 15 Schematics and Bill of Materials www.ti.com Schematic SBAU198 – April 2012 ADS8028EVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
- Page 16 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 17 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 18 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 19 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 20 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 © 2012, Texas Instruments Incorporated...
- Page 21 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 22 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments ADS8028EVM-PDK...
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