ADS5444HFG/EM

Analog To Digital Converters (ADC) Overview

The ADS5444HFG/EM is an evaluation module (EVM) designed for the ADS5444 analog-to-digital converter. It provides a platform for evaluating the ADC under various signal, reference, and supply conditions. The EVM features two analog input paths: one using THS9001 amplifiers and another AC-coupled path. A single-ended clock input is converted to differential at the device input. Digital outputs are accessed via a high-density Samtec header, with a breakout board supporting touchless probing by Agilent and Tektronix logic analyzers. Power is supplied through banana jack sockets for separate analog and digital rails.

Analog To Digital Converters (ADC) Feature Summary

• Supports evaluation of the ADS5444 ADC family with configurable jumper settings for different device variants.
• Provides dual analog input options including a transformer-coupled balun path and a THS9001 amplifier-driven path.
• Includes a dedicated breakout board for high-speed logic analyzer touchless probing from major test equipment vendors.

Analog To Digital Converters (ADC) Applications

• Engineering development and demonstration of high-speed ADC performance.
• Evaluation of analog-to-digital conversion under varying signal and supply conditions.
• Testing and verification of LVDS digital output interfaces using logic analyzers.

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific order corresponds to the ADS5444HFG/EM evaluation module variant. Confirm compatibility with the intended ADC device within the ADS5440/44/63/74 family by checking jumper configurations. Ensure handling follows engineering development standards due to the open construction and electrostatic discharge risks associated with evaluation hardware.

Analog To Digital Converters (ADC) Selection Notes

Select this module specifically for evaluating the ADS5444 device characteristics. Note that the EVM supports multiple devices in the ADS5440/44/63/74 family; verify jumper settings (J20, J21) to match the target component. Consider the available input paths (balun vs. amplifier) when planning signal source integration for testing requirements.

Analog To Digital Converters (ADC) Part Context

This evaluation module is part of the ADS5440/44/63/74 EVM series documented in User's Guide SLAU194A. It serves as a development tool for Texas Instruments' high-speed data converters. The module allows engineers to assess ADC performance without designing custom PCB layouts initially, facilitating rapid prototyping and validation of system-level specifications.

Analog To Digital Converters (ADC) Replacement Considerations

No direct replacement part numbers are documented for this specific evaluation module. For different ADC families, distinct EVMs are required. Verify if the ADS5440, ADS5463, or ADS5474 variants require specific jumper adjustments on this same board rather than seeking a different module.

Analog To Digital Converters (ADC) FAQ

How is the single-ended clock input converted for the ADC?

The single-ended clock input applied to connector J17 is converted into a differential signal using a Coilcraft WBC4-1W transformer with an impedance ratio of 4.

What power supplies are required for default operation?

Default operation requires three supplies: 5 V for the ADC analog supply, 3.3 V for the ADC analog supply, and 3.3 V for the ADC digital buffer supply, connected via separate banana jack sockets.

Can this EVM be used for both ADS5444 and ADS5463 devices?

Yes, the EVM layout supports migration between these devices. Jumper J20 must be configured to short pins 1–2 for ADS5440/44 or pins 2–3 for ADS5463/74 to select the appropriate digital output buffer voltage.