Texas Instruments INA-DUAL-2AMP-EVM User Manual
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Texas Instruments INA-DUAL-2AMP-EVM User Manual

Texas Instruments INA-DUAL-2AMP-EVM User Manual

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User's Guide
INA-DUAL-2AMP-EVM
This user's guide describes the characteristics, operation, and use of the INA-DUAL-2AMP-EVM, an evaluation
module (EVM) that is compatible with a variety of instrumentation amplifiers (INAs). This EVM is compatible with
the SOIC-16 (D) and SOIC-16 (DW) INA packages, and is designed to evaluate the performance of the devices
in both single-supply and dual-supply configurations. This document includes the schematic, printed circuit board
(PCB) layouts, and BOM. Throughout this document the terms evaluation board, evaluation module, and EVM
are synonymous with the INA-DUAL-2AMP-EVM.
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Overview..................................................................................................................................................................................3
1.1 Features.............................................................................................................................................................................
1.2 INA Pinout..........................................................................................................................................................................
1.3 Compatible Devices...........................................................................................................................................................
SBOU272 – NOVEMBER 2021
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ABSTRACT
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Copyright © 2021 Texas Instruments Incorporated
Table of Contents
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INA-DUAL-2AMP-EVM
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Summary of Contents for Texas Instruments INA-DUAL-2AMP-EVM

  • Page 1 INA-DUAL-2AMP-EVM ABSTRACT This user’s guide describes the characteristics, operation, and use of the INA-DUAL-2AMP-EVM, an evaluation module (EVM) that is compatible with a variety of instrumentation amplifiers (INAs). This EVM is compatible with the SOIC-16 (D) and SOIC-16 (DW) INA packages, and is designed to evaluate the performance of the devices in both single-supply and dual-supply configurations.

  • Page 2: Table Of Contents

    Figure 4-1. INA-DUAL-2AMP-EVM Schematic..........................10 Figure 4-2. INA-DUAL-2AMP-EVM PCB............................11 List of Tables Table 1-1. Compatible Devices..............................Table 4-1. INA-DUAL-2AMP-EVM Bill of Materials........................12 Trademarks ® is a registered trademark of X2Y Attenuators, LLC. All trademarks are the property of their respective owners.

  • Page 3: Figure 1-1. Ina-Dual-2Amp-Evm Pinout

    • Easy access to nodes with surface-mount test points • Reference voltage source flexibility • Convenient input and output filtering 1.2 INA Pinout The INA-DUAL-2AMP-EVM evaluates INAs that have the pinout shown in Figure 1-1. VINB- VINA- VINB+ VINA+ RefB...

  • Page 4: Quick Start

    Observe output at test point VOB (TP21) Note C15 and C22 are prepopulated with 0.1-µF power-supply decoupling capacitors. See the respective device data sheet for additional power-supply decoupling information. INA-DUAL-2AMP-EVM SBOU272 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 5: Single-Supply Configuration

    C15 and C22 are prepopulated with 0.1-µF power-supply decoupling capacitors. C22 is not required to be removed for proper single-supply operation. See the respective device data sheet for additional power-supply decoupling information. SBOU272 – NOVEMBER 2021 INA-DUAL-2AMP-EVM Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 6: Figure 2-3. Single-Supply Configuration, Buffered Reference Connection

    0.1µF OAV+ ¨ OUTA © OAVinA- INA- OUTB TP16 OAVinB- TP13 INB- INA+ OAVinA+ TP19 INB+ OAVinB+ OAV- 0.1µF Figure 2-3. Single-Supply Configuration, Buffered Reference Connection INA-DUAL-2AMP-EVM SBOU272 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 7 C15 and C22 are prepopulated with 0.1-µF power-supply decoupling capacitors. C22 is not required to be removed for proper single-supply operation. See the respective device data sheet for additional power-supply decoupling information. SBOU272 – NOVEMBER 2021 INA-DUAL-2AMP-EVM Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 8: Evm Components

    Components R14 and C20 provide the ability to apply a single-pole RC output filter. The cutoff frequency of the output filter is calculated as shown in Equation 3. The correlating resistor and capacitor provide output filtering for channel B. INA-DUAL-2AMP-EVM SBOU272 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 9: Reference

    C1, C2, C6, and C7 are the populated bypass capacitors for the device, U2 and U3. Similarly, C3, C4, C8 and C9 are populated to provide supply bypassing for U1. C19 and C29 can be used with an X2Y ® capacitor. SBOU272 – NOVEMBER 2021 INA-DUAL-2AMP-EVM Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...

  • Page 10: Schematic, Pcb Layout, And Bill Of Materials

    Schematic, PCB Layout, and Bill of Materials www.ti.com 4 Schematic, PCB Layout, and Bill of Materials 4.1 Schematic The schematic for the PCB for the INA-DUAL-2AMP-EVM is shown in Figure 4-1. Instrumentation Amplifier Operational Amplifier Power Power Supply Supply OAV+...

  • Page 11: Pcb Layout

    Schematic, PCB Layout, and Bill of Materials 4.2 PCB Layout The component PCB layout for the INA-DUAL-2AMP-EVM is shown in Figure 4-2. Note Figure 4-2 is intended to show how the board is laid out; it is not intended to be used for manufacturing PCBs.

  • Page 12: Bill Of Materials

    Schematic, PCB Layout, and Bill of Materials www.ti.com 4.3 Bill of Materials Table 4-1 provides the parts list for the EVM. Table 4-1. INA-DUAL-2AMP-EVM Bill of Materials Designator Value Description Package Reference Part Number Manufacturer C1, C3, C6, 10 µF...
  • Page 13 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 14 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 15 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 16 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 17 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 18 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...

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