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User's Guide
OPA593 Evaluation Module
This user's guide describes the operation and use of the OPA593EVM evaluation module (EVM). The user's
guide provides information on how to set up the EVM and describes different circuit configurations that may be
used to fully evaluate the performance of the OPA593 high-voltage (HV), high-current (HI) op amp. Throughout
this document, the terms evaluation board, evaluation module, and EVM are synonymous with the OPA593EVM.
This document also includes an electrical schematic, simplified schematics of OPA593 applications circuits, a
printed circuit board (PCB) layout drawing, and a parts list for the EVM.
Danger: HIGH VOLTAGE! This evaluation board is intended for professional use only. The board
has exposed high voltages. Do not operate this board without proper high-voltage and high-current
safety practices. Read
SBOU268 – NOVEMBER 2021
Submit Document Feedback
ABSTRACT
WARNING
Section 1.2
before using the EVM.
Copyright © 2021 Texas Instruments Incorporated
OPA593 Evaluation Module
1

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Summary of Contents for Texas Instruments OPA593

  • Page 1 EVM and describes different circuit configurations that may be used to fully evaluate the performance of the OPA593 high-voltage (HV), high-current (HI) op amp. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the OPA593EVM.
  • Page 2 4 Schematic, PCB Layout, and Bill of Materials........................4.1 EVM Schematic................................15 4.2 PCB Layout..................................4.3 Bill of Materials.................................19 Trademarks All trademarks are the property of their respective owners. OPA593 Evaluation Module SBOU268 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 3 The device has been designed for use with future HV-HI op amps similar to the OPA593 that will use the same package and pin functions and are electrically similar. Applying some imagination, the EVM PCB layout and footprints can accommodate variations on these circuit designs.
  • Page 4 Exercise caution when working with the EVM to avoid physical contact with the OPA593 and the load that the device may be driving in case either become hot.
  • Page 5 Ri1 (10 kΩ) from VIN– jack J5 to OPA593 –IN pin Ri1 (10 kΩ) input end to GND Ri1 (1 kΩ, 2 W) from VIN– jack J5 to OPA593 –IN pin Ri1 (10 kΩ) input end to GND VIN+ jack J9 to OPA593 +IN pin VIN+ jack J9 to OPA593 +IN through R4 (10 kΩ)
  • Page 6 TP15 GND point near TP14 TP16 GND point near TP8 TP17 VDD supply voltage connects to OPA593 V+ pin TP18 GND point common to VDD and VSS test points TP19 VSS supply voltage connects to OPA593 V- pin Table 2-4 lists the LED indicators, colors, and indications.
  • Page 7 OPA593EVM because the enable-disable function behaves very much the same with either reference level. However, having the choice built into the EVM allows the OPA593 to be set to one or the other of the two most-common reference levels used for OPA593 applications.
  • Page 8 High-current op amps such as the OPA593 are used to drive a load that presents a complex load impedance (ZL = R±jX) at the output. If this complex impedance has significant inductive reactance, the inductance can produce a back electromotive force (EMF) voltage that could potentially damage the OPA593 output stage.
  • Page 9 As received, the OPA593EVM has eight (8), 100-mil jumper shunts across jumper blocks on the PCB. The locations have been selected to establish the OPA593 as either an inverting amplifier having a gain of –1 V/V when VIN– (J5) is driven, or as a noninverting amplifier having a gain of +1 V/V when VIN+ (J9) is driven.
  • Page 10 JP# jumper blocks. Table 3-1. Jumper Shunt Connections for an Inverting Gain of –10 V/V Jumper Block Jumper Shunt Connects Notes R1 (1 kΩ) from VIN– to OPA593 -IN pin G = –10 V/V used OPA593 noninverting input to GND JP11 Open...
  • Page 11 Jumper Block Jumper Shunt Connects Notes Ri1 (10 kΩ) OPA593 –IN pin to GND VIN+ J9 to OPA593 noninverting input R8 (10 kΩ) from OPA593 noninverting input to GND JP11 Open Enabled mode JP13 Sets current limit to 100 mA...
  • Page 12 Jumper Block Jumper Shunt Connects Notes R1 (1 kΩ) OPA593 –IN pin to VIN– J5 VIN+ J9 to OPA593 noninverting input through R5 (1 kΩ) R divider resistor R8 (10 kΩ) from OPA593 noninverting input to GND R divider resistor...
  • Page 13 C12, and up and to the right of the current-limit set resistor shorting blocks JP12 through JP16. Connect jumper shunts as listed in Table 3-4 to configure the OPA593 as an improved Howland current pump. The jumper shunt installations are illustrated in Figure 3-4.
  • Page 14 Riso2 = 49.9 Ω is a constant that scales the IOUT output current. The scaling is different when Riso is set to a different value. Select the value of Riso2 so that the current range coincides with the OPA593 data sheet specifications.
  • Page 15 This section provides the OPA593EVM hardware schematics, PCB layout and Bill of Materials. 4.1 EVM Schematic Figure 4-1 shows the complete OPA593EVM schematic. Figure 4-1. OPA593EVM Complete Schematic SBOU268 – NOVEMBER 2021 OPA593 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 16 The OPA593EVM ships in a configuration that allows the EVM to be directly applied as an inverting or noninverting amplifier. The jumper shunts as positioned establish the OPA593 as either an inverting amplifier having a gain of –1 V/V when J5 is driven, or a noninverting amplifier having a gain of +1 V/V when J9 is driven.
  • Page 17 Figure 4-3 Figure 4-4 show the OPA593EVM PCB top-side and bottom-side views of the PCB layout, respectively. Figure 4-3. Top-Side View of the OPA593EVM PCB SBOU268 – NOVEMBER 2021 OPA593 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 18 Schematic, PCB Layout, and Bill of Materials www.ti.com Figure 4-4. Bottom-Side View of the OPA593EVM PCB OPA593 Evaluation Module SBOU268 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 19 Bourns Fitted R6, R7 300k RMCF0805FT300K Stackpole Fitted 49.9 RCL122549R9FKEG Vishay Dale Fitted RC0603FR-07422RL Yageo Fitted 100k CRCW0603100KFKEA Vishay-Dale Fitted 2.20k RC0603FR-072K2L Yageo Fitted SBOU268 – NOVEMBER 2021 OPA593 Evaluation Module Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 20 CGA3E2X7R2A222K080AA Not Fitted FID1, FID2, FID3 Not Fitted Rhcp1 CMP0805AFX-1002ELF Bourns Not Fitted Rx1, Rx2 4.99k CRCW08054K99FKEA Vishay-Dale Not Fitted CRCW060347R0JNEA Vishay-Dale Not Fitted OPA593 Evaluation Module SBOU268 – NOVEMBER 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
  • Page 21 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 22 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 23 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 24 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 25 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 26 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...
  • Page 27 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments OPA593EVM...

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