Texas Instruments ADS54T04EVM

Overview

ADS54T04EVM from Texas Instruments is an evaluation module designed to characterize the ADS54T04, a dual-channel, 12-bit analog-to-digital converter (ADC) operating at up to 800 MSPS with LVDS DDR digital output. It supports transformer-coupled differential analog inputs, single-ended clock input, and optional external trigger via SMA or Samtec connector for burst-mode data capture.

For engineers reviewing the ADS54T04EVM datasheet, ADS54T04EVM pinout, ADS54T04EVM application, or ADS54T04EVM equivalent, this page provides verified technical context, key specifications, supply support, manufacturer background, and practical FAQs specific to high-speed ADC evaluation workflows with TSW1400/TSW1405 capture cards.

Technical Context

The ADS54T04EVM implements a complete signal chain for evaluating the ADS54T04 ADC, including dual-channel transformer-coupled analog front-end with selectable single-ended/differential input paths, 5-V banana jack power input, and on-board LDOs generating 1.8 V (analog/digital) and 3.3 V (analog/LVDS buffer) rails. Clock conditioning uses a single-ended SMA input followed by transformer-based differential conversion.

Control is provided via USB-hosted SPI GUI software that configures ADS54T04 registers, enables HP Mode 1 and offset correction, sets burst length, and manages reset. Trigger routing supports three sources - SMA J9, pushbutton SW2, or Samtec J11 - selected via surface-mount jumper SJP1, enabling synchronized high-resolution burst acquisition with TSW1400/TSW1405 capture cards.

Key Specifications

Availability

ADS54T04EVM is available at Aetrix Electronics and suitable for high-speed data converter validation, RF receiver characterization, and wideband signal analysis requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for ADS54T04EVM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and high-performance data converter technologies.

The ADS54T04EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate prototyping and performance validation of ultra-high-speed sampling systems in communications infrastructure, test equipment, and radar applications.

FAQ

What is the primary function of the ADS54T04EVM?

The ADS54T04EVM is an evaluation module built to assess the performance of the ADS54T04 dual-channel, 12-bit, 800 MSPS ADC. It provides full signal conditioning, power regulation, SPI-based configuration, and LVDS DDR interface to capture cards like the TSW1400/TSW1405. The ADS54T04EVM enables engineers to validate SNR, SFDR, and FFT performance under real-world analog input and clock conditions without custom PCB development.

Which capture cards are compatible with the ADS54T04EVM?

The ADS54T04EVM is explicitly designed to mate with the TSW1400 and TSW1405 High-Speed Data Capture Cards via its Samtec QSH-080-01-L-D-RA connector (J11). This interface carries LVDS DDR data, clock, and trigger signals. The ADS54T04EVM User's Guide confirms interoperability through hardware pinout alignment, timing compatibility, and software integration with the High Speed Data Converter Pro GUI - all validated for use with ADS54T04EVM in burst-mode and continuous-sampling configurations.

How is the ADS54T04EVM powered, and what voltages does it generate?

The ADS54T04EVM accepts a single 5-V DC input via banana jacks (J7), then uses onboard TPS79601 low-dropout regulators to derive 1.8 V for analog and digital supplies of the ADS54T04, 3.3 V for the analog supply domain, and a separate 3.3-V rail for the LVDS trigger buffer. Jumpers JP12–JP15 configure domain connections, and LED D1 indicates presence of the 5-V supply - ensuring precise, isolated voltage domains required for high-fidelity ADC operation.

Can the ADS54T04EVM operate without a PC or USB connection?

No - the ADS54T04EVM requires a USB-connected PC running the ADS540x_SPI_GUI_v1.3 software to configure the ADS54T04 registers, assert reset, enable HP Mode 1, set burst length, and manage offset correction. While analog signal path and LVDS output operate independently once configured, initial setup, calibration, and dynamic control depend entirely on the USB-SPI interface. The ADS54T04EVM has no standalone firmware or local microcontroller for autonomous operation.

What role does the trigger functionality serve on the ADS54T04EVM?

The trigger functionality on the ADS54T04EVM enables precise burst-mode acquisition synchronized to external events - critical for pulsed RF, radar, or time-of-flight measurements. Trigger input can be sourced from SMA J9 (external signal), pushbutton SW2 (manual), or Samtec J11 (from TSW1400/TSW1405), with routing controlled by surface-mount jumper SJP1. When activated, the ADS54T04 captures a defined number of high-resolution samples, allowing the ADS54T04EVM to isolate transient behavior while minimizing data volume.