Texas Instruments ADS5400EVM-CVAL

Overview

ADS5400EVM-CVAL from Texas Instruments is an evaluation module designed to characterize the ADS5400HFS/EM 12-bit, 1-GSPS analog-to-digital converter under configurable signal, clock, and power conditions. It features transformer-coupled single-ended analog input (J1), external SMA clock input (J12), LVDS digital output interface (J4), onboard TI power management (TPS5420D + TPS79501 + TPS79633), and dual balun (Mini-Circuits ETC1-1-13) pre-installed for RF input conditioning.

For engineers reviewing the ADS5400EVM-CVAL datasheet, ADS5400EVM-CVAL pinout, ADS5400EVM-CVAL application, or ADS5400EVM-CVAL equivalent, this module supports rapid ADC performance validation via TSW1200 capture, SPI register control (USB or TSW1200-linked), jumper-configurable power topologies (LDO-only or switching+LDO), and flexible analog input routing (single-ended transformer-coupled or differential bypass).

Technical Context

The ADS5400EVM-CVAL implements a complete signal chain interface for the ADS5400HFS/EM ADC, including Mini-Circuits ETC1-1-13 dual balun for analog input common-mode biasing and AC coupling via C128/C129, JTX-4-10T clock transformer (1 GHz rated) converting single-ended clock at J12 to differential CLKIN, and LVDS output termination support via external 100-Ω resistors on J4.

Power architecture supports three distinct configurations: (1) cascaded TPS5420D (6–36 V input) + TPS79501 (5 V AVDD) + TPS79633 (3.3 V DVDD); (2) LDO-only (5–5.5 V input) using TPS79633 for both AVDD/DVDD rails; (3) isolated AVDD/DVDD measurement mode with separate banana jack inputs. All configurations are selected via on-board jumpers (JP4–JP17).

Key Specifications

Availability

ADS5400EVM-CVAL is available at Aetrix Electronics and suitable for high-speed data acquisition, radar receiver prototyping, and communications test equipment requiring stable component supply and validated ADC evaluation infrastructure.

Supply support for ADS5400EVM-CVAL 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications applications.

The ADS5400EVM-CVAL belongs to TI's high-speed ADC evaluation platform family, engineered to accelerate time-to-test for GSPS converters in RF sampling, software-defined radio, and instrumentation systems.

FAQ

What is the primary function of the ADS5400EVM-CVAL?

The ADS5400EVM-CVAL is an evaluation module specifically built to assess the performance of the ADS5400HFS/EM 12-bit, 1-GSPS analog-to-digital converter. It provides configurable analog input paths (transformer-coupled single-ended or differential), precise clock conditioning, regulated multi-rail power delivery, LVDS data capture interface, and SPI register access-enabling comprehensive characterization of dynamic parameters like SNR, SFDR, and ENOB across varying signal, clock, and supply conditions. The ADS5400EVM-CVAL does not operate as a standalone product but serves exclusively as a hardware reference platform for the target ADC.

Which ADC device does the ADS5400EVM-CVAL evaluate?

The ADS5400EVM-CVAL is designed exclusively for evaluating the ADS5400HFS/EM - a 12-bit, 1-GSPS, low-power, high-performance analog-to-digital converter from Texas Instruments. The module's schematic, power architecture, clock interface, analog input network, and LVDS output layout are all optimized to match the electrical and thermal requirements of the ADS5400HFS/EM package and pinout. No other ADC variant or family is supported by the ADS5400EVM-CVAL without hardware modification.

How is analog input configured on the ADS5400EVM-CVAL by default?

By default, the ADS5400EVM-CVAL uses Analog Input Option 1: a transformer-coupled single-ended input applied to SMA connector J1. A dual balun (Mini-Circuits ETC1-1-13) is pre-installed to convert the single-ended signal to differential format while establishing proper common-mode bias for the ADS5400HFS/EM. AC coupling capacitors C128 and C129 ensure DC isolation. This configuration matches the factory-default jumper settings (L25/L26/R25/R26 installed) and is validated for quick-start testing per SLAU471A User's Guide.

What power supply options does the ADS5400EVM-CVAL support?

The ADS5400EVM-CVAL supports three jumper-configurable power topologies: (1) Cascaded switching + LDO (6–36 V input via J5, using TPS5420D → TPS79501 → TPS79633); (2) LDO-only (5–5.5 V input, default mode using TPS79633 for both AVDD and DVDD); (3) Isolated AVDD/DVDD measurement (separate banana jack inputs, no J5 power). Each option requires specific jumper changes (JP12–JP17) documented in Table 3 of SLAU471A, and incorrect configuration may damage the ADS5400EVM-CVAL.

Can the ADS5400EVM-CVAL be used with the TSW1200 capture board?

Yes, the ADS5400EVM-CVAL is fully compatible with the TSW1200 capture board for high-speed data acquisition and FFT-based performance analysis. The TSW1200 connects directly to J4 (LVDS output header) and supplies 5 V to the ADS5400EVM-CVAL via banana jacks when JP8 and J22 are configured appropriately. TSW1200 Software 2.0 also supports SPI register control of the ADS5400HFS/EM through re-routed signals (R54/R78/R82 moved to R18/R38/R72), enabling synchronized configuration and capture without external USB connection. This integration is explicitly validated in Section 3 of SLAU471A.