Reference Design for Implementation of the Load Sharing Concept for Large-Signal Applications
TIDA-00023
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Description

Using the THS3091 high voltage, low distortion current-feedback op amp, this reference design showcases the technique and the benefits of configuring multiple op-amps in a load sharing configuration when driving high voltage signals into heavy loads.  Supported by a full scale application report, the design can be easily adjusted for a given application.

Features
  • 15V supply voltage
  • Up to 24VPP output swing
  • Third-Harmonic Distortion of 32dBc when driving a 20VPP, 70MHz sine wave into a 100Ω load (double-terminated 50Ω cable)
  • Second-Harmonic Distortion of 38dBc when driving a 20VPP, 70MHz sine wave into a 100Ω load (double-terminated 50Ω cable)
  • High Current Drive Capability (up to 400mA with two THS3091 op amps)
  • This reference design has been lab tested and is supported with design files and a design guide


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Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
THS3091  Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
THS3091 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 525 17 Sep 2013
Design files (3)
Title Type Size (KB) Date
ZIP 177 17 Sep 2013
PDF 99 17 Sep 2013
PDF 83 17 Sep 2013

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