Texas Instruments ADS1 7 EVM-PDK Series User Manual

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This user's guide describes the characteristics, operation, and use of the ADS1x7xEVM-PDK. These

evaluation modules kits (EVM-PDK) are an evaluation system for the ADS1278, a 24-bit, 8 channel,

delta-sigma analog-to-digital converter (ADC), the ADS1178, a 16-bit version of the ADS1278 and the

ADS1274

and ADS1174, which are 4 channel versions of the ADS1278 and ADS1178, respectively. The

EVM-PDK allows evaluation of all aspects of the ADS1x7x devices.

This document includes an EVM QuickStart, 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.

Device

ADS1278

ADS1274

ADS1178

ADS1174

REF5025

OPA2350

ADCPro is a trademark of Texas Instruments.

C is a trademark of NXP Semiconductors, Inc.

SBAU197 – February 2012

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ADS1x7xEVM-PDK

Table 1. EVM-Compatible Device Data Sheets

Literature Number

SBAS367

SBAS373

SBOS410

SBOS099

ADS1x7xEVM-PDK

Device

Literature Number

OPA1632

SBOS286

SN74LVC2G157

SCES207

TPS73018

SBVS054

TPS65131

SLVS493

PCA9535

SCPS129

User's Guide

SBAU197 – February 2012

ADS1x7xEVM-PDK

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Summary of Contents for Texas Instruments ADS1 7 EVM-PDK Series

Page 1 EVM-PDK allows evaluation of all aspects of the ADS1x7x devices. This document includes an EVM QuickStart, 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. Table 1. EVM-Compatible Device Data Sheets...
Page 2: Table Of Contents
J3: Primary Analog Interface Pinout ................. J1: Secondary Analog Interface Pinout ....................J5, Serial Interface Header ......................J2, DOUTx Header .................. J3 Configuration: Power-Supply Input ..................ADS1x7xEVM Bill of Materials SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 3: Evm Overview
ADS1178EVM/ADS1278EVM/ADS1174EVM/ADS1274EVM. For clarity of reading, this manual will refer only to the ADS1278EVM or ADS1x7xEVM-PDK, but operation of the EVM and kit for the ADS1178/ADS1274/ASD1174 is identical, unless otherwise noted. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 4: Quick Start
Channel 2 header connected to converter (not Header connected to converter (Left) buffered) Channel 1 header connected to converter (not Header connected to converter (Left) buffered) ADS1x7xEVM-PDK SBAU197 – February 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 5 Do not misalign the pins when plugging the ADS1278EVM into the MMB0. Check the pin alignment of J3, J5, and J4 carefully before applying power to the PDK. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 6: Quick Reference
The ADS1278EVM has two options for the reference voltage. Switch S3 selects the reference voltage from either the buffered REF5025 or a external reference voltage that is connected to the reference pins of J3. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 7: Using The Ads1178Evm-Pdk/Ads1278Evm-Pdk Plug-In Adcpro
The ADS1278 can acquire data from one to eight channels simultaneously. The Channel Enable tab (as shown in Figure 2) provides the control to power on or off each channel. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 8 Disabled turn all the selector switches either ON or OFF. Settings Tab The Settings tab allows for the selection of the various clock frequencies, operating mode, data format, and other settings. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 9 The maximum clock frequency is shown for the different converter options in Table SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 10: Operating Modes: Clock Frequency
The About tab provides information on the EVM hardware and software versions. Plug-in Version is software version of ADCPro plug-in. Firmware Version is firmware version loaded and running on the processor. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 11 Right - input buffer Only one of FSYNC/DRDY signals should be connected at a time (J1 or J2). Channels 4-8 only available for ADS1278 and ADS1178. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 12: Jumper And Switch Descriptions
When the buffers are not selected, the op-amps used for buffering can be powered down by shorting JP3. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 13: J3: Primary Analog Interface Pinout
The ADS1278 allows the serial interface to be used in two different formats: an SPI-compatible mode and a frame-sync format. Switch S6 switches between these two formats: • SPI format configures the signals as follows: SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 14 Clock source select (SW CLK Select C data mode) Pin 1 is top left-hand corner, located next to reference designator. DOUT1 buffered through a D flip-flop. See Section 5.5.3.1 below. ADS1x7xEVM-PDK SBAU197 – February 2012 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 15 DVDD supply is connected to the +3.3VD pin of the J3 header. The ADS1278 analog supply, AVDD, is connected to the +5VA pin of the J3 header. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 16 Resistor, Chip, 1/10W, 5% Rohm MCR03EZPJ103 4.3k Resistor, Chip, 1/10W, 5% Rohm MCR03EZP432 R51-52 Resistor, Chip, 1/10W, 5% Rohm MCR03EZPJ473 These parts are not installed for ADS1274 and ADS1174 SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 17 PCB, 3.31 In x 2.88 In x 0.062 In 6492525 Shunt, 100-mil, Black 929950-00 Installed for ADS1278EVM-PDK. For other EVM-PDKs, the appropriate device will be installed. SBAU197 – February 2012 ADS1x7xEVM-PDK Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated...
Page 18 0.1u 470k DGND AGND AGND CM2 0 DGND DVDD_26 DGND IOVDD CM3 0 TP11 IOVDD_22_23 Texas Instruments JP4 JP5 Setting CM1-3 are available for current monitoring AGND OFF ON Hardware External DGND Title ADS1278EVM OFF OFF Hardware Internal ON x...
Page 19 [1,2] AVDD [1,2] REFP U2-A OUTA 0.1u 1 DNC 2 VIN 100u 3 TEMP VOUT 4 GND TRIM AGND [1,2,3] Texas Instruments Title ADS1278EVM Size Number <Number> 07APR11 G Hupp Date Drawn by G Hupp ads1278evm.sch Engineer Filename Sheet 2/9/2012...
Page 20 ANP1 0.1u 1.5n 0.1u 0.1u ANN1 1.5n AGND AGND AGND ANP3 ANN3 ANN4 ANP4 ANN4 ANP4 REFN_HDR[1] REFP_HDR[1] AGND BRD_ANLG_IN Texas Instruments Title ADS1278EVM Size Number <Number> 07APR11 G Hupp Date Drawn by G Hupp ads1278evm.sch Engineer Filename Sheet 2/9/2012...
Page 21 0.1u DGND IOVDD 0.1u DGND 1 A0 DGND 2 A1 DGND 3 A2 DGND 4 VSS DGND DGND DGND DGND Texas Instruments Title ADS1278EVM Size Number <Number> 07APR11 G Hupp Date Drawn by G Hupp ads1278evm.sch Engineer Filename Sheet 2/9/2012...
Page 22 Any exceptions to this is 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 23 REGULATORY COMPLIANCE INFORMATION (continued) 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 24 Japan with respect to this product. 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, Shinjukku-ku, Tokyo, Japan http://www.tij.co.jp 【ご使用にあたっての注】...
Page 25 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 26 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 27 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 28 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 29 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 30 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 31 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments ADS1278EVM-PDK ADS1178EVM-PDK...

Texas Instruments ADS1 7 EVM-PDK Series User Manual

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