Texas Instruments ADS5403EVM

Overview

ADS5403EVM from Texas Instruments is an evaluation module designed to characterize the ADS5403, a dual-channel, 12-bit analog-to-digital converter (ADC) operating at up to 800 MSPS with LVDS DDR digital outputs. It supports transformer-coupled differential analog inputs, single-ended clock input via SMA, and 5-V banana jack power supply. The EVM enables high-fidelity signal acquisition for RF sampling, communications test equipment, and radar receiver development.

For engineers reviewing the ADS5403EVM datasheet, ADS5403EVM pinout, ADS5403EVM application, or ADS5403EVM equivalent, this page delivers verified technical context, key specifications, availability details, manufacturer background, and targeted FAQs - all grounded in TI's SLAU450 User's Guide and official EVM documentation.

Technical Context

The ADS5403EVM implements a dual-channel analog front-end with two independent SMA inputs, each routed through precision transformers to deliver balanced differential signals to the ADS5403 ADC. Clock conditioning includes single-ended SMA input followed by transformer-based differential conversion for low-jitter sampling clock distribution.

Power is derived entirely from a 5-V DC input via banana jacks, regulated internally by TPS79601 LDOs to generate 3.3 V (analog), 1.8 V (digital), and 1.8 V (analog AVDDC) rails. SPI control is supported via USB interface (default) or FPGA-driven Samtec connector, enabling register-level configuration of HP Mode 1, offset correction, and burst length settings.

Key Specifications

Availability

ADS5403EVM is available at Aetrix Electronics and suitable for RF sampling validation, high-speed data converter characterization, and radar/communications system prototyping requiring stable component supply and full evaluation infrastructure support.

Supply support for ADS5403EVM 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 ADS5403EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate time-to-test for GHz-range sampling applications in defense, wireless infrastructure, and instrumentation.

FAQ

What is the primary function of the ADS5403EVM?

The ADS5403EVM is a dedicated evaluation module for the ADS5403 dual-channel, 12-bit, 800 MSPS ADC. It provides complete signal conditioning, power regulation, SPI control, and LVDS data output infrastructure - enabling engineers to validate dynamic performance metrics (SNR, SFDR, FFT) without custom PCB design. The ADS5403EVM integrates transformer-coupled analog inputs, differential clock generation, and USB-controlled register access to streamline high-speed ADC evaluation.

Which ADC does the ADS5403EVM support?

The ADS5403EVM is explicitly designed for the ADS5403 - a two-channel, 12-bit, 800 MSPS analog-to-digital converter from Texas Instruments. While the EVM's hardware and documentation also reference ADS5402 and ADS54T0x variants, its default configuration, jumper settings, and software initialization files (e.g., ADS5402.ini) are validated for ADS5403 operation per SLAU450. The ADS5403EVM does not support unrelated ADC families or non-TI devices.

How is the ADS5403EVM powered?

The ADS5403EVM receives power exclusively through a 5-V DC input applied to banana jacks J7 (and optionally J8). Onboard TPS79601 LDO regulators convert this input into three critical supply rails: 3.3 V for analog circuitry, 1.8 V for digital logic, and a second 1.8 V rail for analog core (AVDDC). No external voltage sources or additional power supplies are required - all necessary voltages are generated internally from the single 5-V input.

Can the ADS5403EVM be used with the TSW1405 Capture Card?

Yes - the ADS5403EVM is fully compatible with the TSW1405 Capture Card via its Samtec connector (J11), which mates directly with the TSW1405's J3 interface. This pairing enables real-time data capture, PC upload, FFT analysis, and performance reporting (SNR, SFDR). The ADS5403EVM's trigger routing options (SMA J9, SW2, or Samtec J11) and LVDS DDR output format align precisely with TSW1405 requirements as documented in SLAU450 Section 3.2 and Figure 6.

Does the ADS5403EVM include software for ADC configuration?

Yes - the ADS5403EVM ships with the ADS540x_SPI_GUI_v1.3 software, providing full register-level control of the ADS5403. The GUI supports reset assertion, HP Mode 1 enablement, channel-specific offset correction, burst length configuration (for ADS54T0x), and test pattern generation. All functions operate over USB, with drivers installed automatically via the ADS540x_Installer_vxpx package. Configuration files for common frequency plans are included in the installation directory for immediate use with the ADS5403EVM.