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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.
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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.
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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.
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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)
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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.
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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.
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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.
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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.
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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...
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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...
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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...
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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.
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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.
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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.
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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.
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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.
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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...
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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.
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