Texas Instruments ADS5402EVM

Overview

ADS5402EVM from Texas Instruments is an evaluation module designed to characterize the ADS5402, 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 receiver, radar, and communications test benches.

For engineers reviewing the ADS5402EVM datasheet, ADS5402EVM pinout, ADS5402EVM application, or ADS5402EVM equivalent, this page delivers verified hardware configuration details, SPI GUI control workflow, TSW1400/TSW1405 capture integration, FFT-based performance validation (SNR, SFDR), and jumper-selectable ADC supply domain routing - all critical for high-speed data converter evaluation and system prototyping.

Technical Context

The ADS5402EVM implements a complete front-end interface for the ADS5402 ADC, including dual transformer-coupled analog input paths (Channel A and B), SMA-based clock injection, and on-board LDO regulation (TPS79601) generating 1.8 V and 3.3 V rails from a single 5-V input. Power domains are configurable via square-post jumpers JP12–JP15 to isolate analog/digital supplies per ADS5402 requirements.

Control is delivered via USB-hosted SPI GUI software that programs the ADS5402 register map, enabling HP Mode 1, offset correction per channel, burst length configuration (for ADS54T0x), and reset assertion. Signal routing between USB port and TSW140x capture card is managed by surface-mount 0-Ω resistors (R14–R17, R38, R43, R45), allowing flexible host-control topology selection.

Key Specifications

Availability

ADS5402EVM is available at Aetrix Electronics and suitable for high-speed ADC evaluation, RF receiver characterization, radar waveform analysis, and communications transceiver development requiring stable component supply and full documentation traceability.

Supply support for ADS5402EVM 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, delivering analog, embedded processing, and high-speed data converter solutions for industrial, automotive, and communications markets.

The ADS5402EVM belongs to TI's high-speed data converter evaluation platform family, engineered specifically to accelerate validation of GSPS-class ADCs in demanding RF and instrumentation applications - with emphasis on signal integrity, flexible power domain isolation, and seamless integration with TSW1400/TSW1405 capture infrastructure.

FAQ

What is the primary function of the ADS5402EVM?

The ADS5402EVM is a dedicated evaluation module for the ADS5402 dual-channel, 12-bit, 800 MSPS ADC. It provides transformer-coupled analog inputs, regulated 1.8 V/3.3 V power domains, LVDS DDR data output via Samtec connector, and USB-based SPI GUI control - enabling full characterization of dynamic performance metrics including SNR and SFDR when paired with TSW1400/TSW1405 capture cards. The ADS5402EVM does not contain the ADS5402 IC itself as a replaceable component but hosts it permanently on board.

Which capture cards are compatible with the ADS5402EVM?

The ADS5402EVM is explicitly designed for interoperability with Texas Instruments' TSW1400 and TSW1405 High-Speed Data Capture Cards. Connection is made via the Samtec QSH connector (J11) on the ADS5402EVM and J3 on the capture card. The ADS5402EVM User's Guide (SLAU450) confirms this pairing enables data capture, PC upload, FFT analysis, and reporting of SNR, SFDR, and other key ADC metrics - with trigger synchronization supported through J9 (SMA), SW2 (pushbutton), or J11 (Samtec).

How is power delivered to the ADS5402EVM?

The ADS5402EVM receives power exclusively through a 5-V DC input applied to banana jacks J7 (and J8 for ground reference). On-board TPS79601 LDO regulators derive 1.8 V for analog/digital supplies and 3.3 V for analog bias and LVDS buffer circuits. Jumpers JP12–JP15 configure supply routing to ADS5402 domains (AVDDC, DVDD, AVDDA), and LED D1 illuminates to confirm valid 5-V presence. No external AC/DC adapter or auxiliary power sources are required or supported.

Can the ADS5402EVM be used without the TSW1400/TSW1405 capture card?

Yes - the ADS5402EVM can operate independently for basic ADC configuration and register-level testing using only its USB port and the ADS540x_GUI_v1.3 software. This allows SPI-based setup of HP Mode 1, offset correction, reset, and test patterns. However, full dynamic performance evaluation (e.g., FFT, SNR, SFDR) requires digitized sample data, which the ADS5402EVM alone cannot store or process - making the TSW1400 or TSW1405 capture card essential for quantitative high-speed ADC characterization. The ADS5402EVM does not include onboard memory or real-time analysis capability.

What jumper configurations are required for default ADS5402 operation?

For default ADS5402 operation, jumpers must be set as follows: JP12 (1–2) connects 3.3 V to analog 3.3 V supply; JP13 (1–2), JP14 (1–2), and JP15 (1–2) route 1.8 V to digital and analog domains; SJP1 (1–3) selects SMA J9 as trigger source; JP1 (1–2) enables the ADC; and JP5 (1–2) powers the USB I/O from the USB port. Surface-mount resistors R14, R15, R16, and R17 must remain installed to route SPI signals from USB to the ADS5402. These settings align with Table 1 and Figure 3 in SLAU450.