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User's Guide
ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and
ADS7057EVM-PDK Evaluation Module
This user's guide describes the characteristics, operation, and use of the ADS7042EVM-PDK, ADS7049-
Q1EVM-PDK, and ADS7057EVM-PDK evaluation modules (EVM), referred to collectively as the
ADS704X-5XEVM-PDK. Each kit functions as an evaluation platform for two different low-power, small-size,
general-purpose successive approximation register (SAR) analog-to-digital converters (ADCs). These ADCs
include the 12-bit, 1-MSPS, single-ended input ADS7042, the 12-bit, 2-MSPS, single-ended ADS7049-Q1, the
12-bit, 3-MSPS, differential input ADS7047, and the 14-bit, 2.5-MSPS, differential input ADS7057. Moreover,
unique EVM design enables evaluation of the entire family of ADS704x and ADS705x devices through
minor modifications. Finally, this EVM platform eases device analysis using hardware, software, and computer
connectivity through the universal serial bus (USB) interface.
This user's guide includes complete circuit descriptions, schematic diagrams, and a bill of materials. Throughout
this document, the abbreviation EVM and the term evaluation module are synonymous with any EVM
(ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, or ADS7057EVM-PDK), unless otherwise noted.
SBAU382 – NOVEMBER 2021
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ABSTRACT
ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK
Copyright © 2021 Texas Instruments Incorporated
1
Evaluation Module
Table of Contents
Related Manuals for Texas Instruments ADS7042EVM-PDK
Summary of Contents for Texas Instruments ADS7042EVM-PDK
- Page 1 ADS7057EVM-PDK Evaluation Module ABSTRACT This user's guide describes the characteristics, operation, and use of the ADS7042EVM-PDK, ADS7049- Q1EVM-PDK, and ADS7057EVM-PDK evaluation modules (EVM), referred to collectively as the ADS704X-5XEVM-PDK. Each kit functions as an evaluation platform for two different low-power, small-size, general-purpose successive approximation register (SAR) analog-to-digital converters (ADCs).
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Page 2: Table Of Contents
National Instruments. Microsoft ® and Windows ® are registered trademarks of Microsoft Corporation. All trademarks are the property of their respective owners. ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 3: Ads704X-5Xevm-Pdk Overview
Two ultra-low noise, low-dropout (LDO) regulators for excellent single-supply regulation of all analog circuits • Accommodates all package options for 14 different ADCs using four different device footprints, as per Table SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... - Page 4 X2QFN (U8) ADS7042EVM-PDK, ADS7057 Differential X2QFN (U5) ADS7057EVM-PDK ADS7029-Q1 Single-ended VSSOP (U3) ADS7039-Q1 Single-ended VSSOP (U3) ADS7049-Q1 ADS7049-Q1EVM-PDK Single-ended VSSOP (U3) ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 5: Introduction To The Ads704X-5Xevm
AGND AGND Replace R43 and R44 with 100nF capacitors when OPA_VSS ≠ AGND Figure 2-2. Single-Ended Input Path on the ADS704X-5XEVM SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... - Page 6 Moreover, each digital input has a 49.9-Ω series resistor. These resistors smooth the edges of the digital signals to minimize overshoot and ringing. ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 7: Power Supplies
(pin 4) on the buffer amplifier in Figure 2-6 is hard-wired to AGND and is therefore unaffected when the voltage on OPA_VSS is changed. SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... -
Page 8: Digital Interface And Communication
49.9-Ω resistors slow down the signal edges to minimize signal overshoot. JP5 provides test points to measure the digital signals, as illustrated in Figure 2-7. ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 9: C Bus For Onboard Eeprom
4.6. EVM_ID_PWR EVM_ID_PWR 10.0k 100nF 10.0k AGND EVM_ID_SCL EVM_ID_SDA CAS-120TA BR24G32FVT-3AGE2 AGND EVM_ID_WP AGND Figure 2-8. EEPROM Circuit on the ADS704X-5XEVM SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... -
Page 10: Ads704X-5Xevm Software Installation
Figure 3-1, accept the license agreements and follow the on-screen instructions to complete the installation. Figure 3-1. Software Installation and Prompts ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 11 As part of the ADS704X-5XEVM GUI installation, a prompt with a Device Driver Installation appears on the screen, as shown in Figure 3-2. Click Next to proceed. Figure 3-2. Device Driver Installation SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated...
- Page 12 Figure 3-3, if not already installed. Figure 3-3. LabVIEW™ Run-Time Engine Installation ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 13: Evm Operation
The PSIEVM can be used to generate clean sinusoidal input signals for the ADS704X-5XEVM to verify AC performance specifications. Figure 4-1. Hardware Connections on the ADS704X-5XEVM SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... -
Page 14: Evm Gui Global Settings For Adc Control
VREF (only valid if AVDD is modified from the default value as per Section 2.2, otherwise leave this value set to 3.3 V) • Samples • SCLK Frequency • Sampling Rate ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 15: Time Domain Display
Figure 4-3. Time Domain Display in the ADS704X-5XEVM GUI SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... -
Page 16: Spectral Analysis
The PSIEVM can be used to generate clean sinusoidal input signals for the ADS704X-5XEVM to verify AC performance specifications. ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 17: Histogram Analysis
ADS7047 to ADS7044 6. Set switch S1 to write disable by pushing the switch closest to the WR_DIS silkscreen text (see Figure 2-1) SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... - Page 18 EVM Operation www.ti.com Figure 4-6. Selecting the ADCs and Loading the EEPROM Figure 4-7. GUI Main Screen After EEPROM is Updated Successfully ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 19: Bill Of Materials, Layout, And Schematic
0603 Yageo R13, R21, R22, R40, R43, R44 RT0603BRD073 301k RES, 301 k, 0.1%, 0.1 W, 0603 0603 Yageo America 01KL SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... - Page 20 Ultra-Low Power, Ultra-Small Size, 12-Bit, 1-MSPS, Texas VSSOP8 ADS7044IDCUR SAR ADC Instruments 1. ADS7049QDCURQ1 on the ADS7049-Q1EVM-PDK. 2. ADS7047IRUGR on the ADS7049-Q1EVM-PDK. ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 21: Layout
Bill of Materials, Layout, and Schematic 5.2 Layout Figure 5-1 through Figure 5-7 show the layout for the ADS704X-5XEVM. Figure 5-1. Composite PCB Layout SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... - Page 22 Figure 5-3. Top Layer Figure 5-4. Inner Ground Plane 1 Figure 5-5. Inner Ground Plane 2 Figure 5-6. Bottom Layer Figure 5-7. Bottom Overlay ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK SBAU382 – NOVEMBER 2021 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 23: Schematic
U5_CS U5_CS 49.9 CS_B ADS7044IDCUR 16.0 ADS7057IRUGR 1.00k OPA2836QDGKRQ1 QTH-030-01-L-D-A AGND AGND AGND AGND 1.00k AGND 100nF Figure 5-8. ADS704X-5XEVM Schematic SBAU382 – NOVEMBER 2021 ADS7042EVM-PDK, ADS7049-Q1EVM-PDK, and ADS7057EVM-PDK Submit Document Feedback Evaluation Module Copyright © 2021 Texas Instruments Incorporated... - Page 24 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 25 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 26 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 27 www.ti.com 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. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 28 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 © 2019, Texas Instruments Incorporated...
- Page 29 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...