Texas Instruments THS4503EVM manual

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Circuit pathways should be made as symmetrical as possible for both feedback pathways to minimize second and other even-harmonic content.

The printed-circuit board used with PowerPAD packages must have features included in the design to remove the heat from the package efficiently. As a minimum, there must be an area of solder-tinned-copper underneath the PowerPAD package. This area is called the thermal land. The thermal land varies in size depending on the PowerPAD package being used, the PCB construction and the amount of heat that needs to be removed. In addition, this thermal land may or may not contain thermal vias depending on PCB construction. The requirements for thermal lands and thermal vias are detailed in http://www−s.ti.com/sc/techlit/slma002 and http://www−s.ti.com/sc/techlit/slma004.

Finally, all inputs and outputs must be properly terminated, either in the layout or in the load instrumentation. Unterminated lines, such as coaxial cable, can appear to be a reactive load to the amplifier. By terminating a transmission line with its characteristic impedance, the amplifier’s load then appears to be purely resistive, and reflections are absorbed at each end of the line. Another advantage of using an output termination resistor is that capacitive loads are isolated from the amplifier output. This isolation helps minimize the reduction in the amplifier’s phase-margin and improves the amplifier stability resulting in reduced peaking and settling times.

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Preface FCC Warning Trademarks Page Introduction and Description Contents Chapter Evaluation Module Features DescriptionTHS4503EVM Operating Conditions EVM Default Configuration Page Using the THS4503EVM Power Supply Connection Refer to −1 Required EquipmentFunction Generator Setup Signal Connection VIN− Refer to −2Page THS4503EVM Applications Single-Ended In/Single-Ended Out, Utilizing Transformer Single-Ended to Fully Differential Application−2. Single Supply Operation −3. Output of an AC-Coupled, Single-Supply Application High-Speed Amplifier PCB Layout Tips Page −1. THS4503EVM Bill of Materials −1. Top Layer 1 Signals for THS4503EVM −2. Bottom Layer 2 Ground and Signal −3. Schematic Diagram

THS4503EVM specifications

The Texas Instruments THS4503EVM is a high-performance evaluation module designed to showcase the capabilities of the THS4503, a high-speed voltage feedback amplifier. This EVM is ideal for engineers and designers looking to evaluate the performance characteristics of this amplifier in real-world applications, including video signal processing, data acquisition systems, and RF applications.

One of the main features of the THS4503EVM is its exceptional bandwidth performance. The THS4503 amplifier boasts a wide bandwidth that extends up to 1 GHz, making it suitable for applications where high frequency signals need to be processed with minimal distortion. The high slew rate of 3000 V/µs allows for rapid signal changes, ensuring that fast transients are accurately captured without significant overshoot or ringing.

The design of the THS4503EVM also incorporates a low noise characteristic, making it an excellent choice for sensitive applications where signal integrity is paramount. The EVM's Input Voltage Noise Density is remarkably low, contributing to cleaner signal amplification and making it a valuable tool for testing low-level signals.

Another significant characteristic of the THS4503EVM is its flexibility in configuration. The evaluation module is equipped with connectors that allow users to quickly set up various input and output configurations. This provides engineers with the ability to easily test a wide range of operating conditions, including voltage gain settings, power supply configurations, and load conditions, all ideal for diverse application scenarios.

Furthermore, the THS4503EVM supports both single and dual power supply options, accommodating various system designs. It can operate on a supply voltage range from ±2.5 V to ±5 V, allowing users to tailor the functionality of the amplifier to their specific power requirements.

In terms of technology, the THS4503 integrates precision feedback circuitry and advanced manufacturing techniques, ensuring minimal drift and excellent linearity. The module is designed for simplicity and user-friendliness, with comprehensive documentation and application information available from Texas Instruments, aiding users in achieving optimal performance.

In summary, the Texas Instruments THS4503EVM is a powerful evaluation tool for the THS4503 amplifier, featuring high bandwidth, low noise, flexible configuration options, and robust support for various supply voltages. Its capabilities make it an invaluable resource for engineers working across a wide range of high-speed signal applications.
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