Texas Instruments FMC-ADC-ADAPTER

Overview

FMC-ADC-ADAPTER from Texas Instruments is a high-speed data converter evaluation interface adapter that enables seamless mechanical and electrical connection between Texas Instruments ADC evaluation modules (e.g., ADS4149EVM, ADS5485EVM) and Xilinx FPGA evaluation kits via the ANSI/VITA 57.1-compliant FMC (FPGA Mezzanine Card) standard. It supports 14-bit to 16-bit ADCs with sample rates up to 1 GSPS, provides AC-coupled analog input paths, and maintains signal integrity for high-fidelity sampling in RF and communications test benches.

For engineers reviewing the FMC-ADC-ADAPTER datasheet, FMC-ADC-ADAPTER pinout, FMC-ADC-ADAPTER application, or FMC-ADC-ADAPTER equivalent, this adapter is critical for validating TI high-speed ADC performance in Xilinx-based prototyping environments - especially when evaluating SNR, SFDR, jitter sensitivity, and analog input bandwidth up to 2 GHz.

Technical Context

The FMC-ADC-ADAPTER implements a passive, impedance-matched interconnect between TI's ADC EVMs and Xilinx FMC carrier boards. It routes analog inputs (single-ended or differential), clock signals (LVDS/LVPECL), and digital capture buses (parallel CMOS or DDR LVDS) while preserving timing alignment and minimizing crosstalk across 16+ lanes.

It conforms strictly to VITA 57.1 FMC LPC (Low Pin Count) mechanical and electrical specifications, including 0.8 mm pitch, 160-pin edge connector layout, and defined I/O voltage domains (VIO = 2.5 V or 3.3 V). No on-board power regulation or signal conditioning is integrated - all functionality is routing and mechanical adaptation.

Key Specifications

Availability

FMC-ADC-ADAPTER is available at Aetrix Electronics and suitable for high-speed data converter validation, RF receiver prototyping, and communications system development requiring stable component supply and traceable sourcing for evaluation-stage hardware.

Supply support for FMC-ADC-ADAPTER 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 and embedded processing solutions for industrial, automotive, communications, and consumer applications.

The FMC-ADC-ADAPTER belongs to TI's High-Speed Data Converter Evaluation Ecosystem and was designed specifically to accelerate adoption of TI's 12–16-bit, 65 MSPS–1 GSPS ADCs in FPGA-based signal chain development.

FAQ

What is the primary function of the FMC-ADC-ADAPTER?

The FMC-ADC-ADAPTER serves exclusively as a mechanical and electrical interface bridge between Texas Instruments' high-speed ADC evaluation modules and Xilinx FPGA evaluation platforms. It does not process signals or provide power regulation - its role is precise, low-loss routing of analog inputs, reference clocks, and parallel digital outputs per VITA 57.1 LPC specifications. The FMC-ADC-ADAPTER enables rapid integration without custom PCB design for labs validating TI ADC performance in real-world FPGA-based systems.

Which TI ADC evaluation modules are confirmed compatible with the FMC-ADC-ADAPTER?

The FMC-ADC-ADAPTER is explicitly validated with TI ADC EVMs listed in official documentation, including ADS4149EVM (14-bit, 250 MSPS), ADS5485EVM (16-bit, 200 MSPS), ADS62P49EVM (14-bit, 250 MSPS dual-channel), and ADS5400EVM (12-bit, 1 GSPS). Compatibility requires matching FMC LPC connector type, analog input configuration (AC-coupled, 50 Ω), and clock interface (LVDS/LVPECL). The FMC-ADC-ADAPTER does not support DAC EVMs or non-LPC FMC variants.

Does the FMC-ADC-ADAPTER include onboard signal conditioning or power conversion?

No - the FMC-ADC-ADAPTER is a fully passive adapter with no active components, regulators, level shifters, or signal conditioning circuitry. All analog signal paths are direct 50 Ω microstrip traces; digital lines are routed without termination or buffering; and power is delivered unregulated from the FMC host to the ADC EVM via standard VIO and +12 V pins. The FMC-ADC-ADAPTER relies entirely on the connected ADC EVM for power sequencing, reference generation, and analog front-end biasing.

Can the FMC-ADC-ADAPTER be used with non-Xilinx FMC carrier boards?

Yes - the FMC-ADC-ADAPTER complies with the open VITA 57.1 LPC standard and has been verified with third-party carriers meeting the same mechanical, pinout, and electrical specifications (e.g., Analog Devices' AD-FMCOMMS-EBZ with LPC adapter, or Digilent's Genesys 2 with FMC LPC support). However, signal integrity and timing alignment depend on the host board's implementation of clock distribution, termination, and I/O voltage control - the FMC-ADC-ADAPTER itself imposes no vendor lock-in.

Is thermal management or mounting hardware included with the FMC-ADC-ADAPTER?

The FMC-ADC-ADAPTER ships as a bare PCB with standard 2.54 mm mounting holes aligned to VITA 57.1 mechanical drawings. No heatsinks, standoffs, or thermal pads are provided - thermal load is negligible due to zero active power dissipation. Users must supply M2.5 screws and compatible spacers to secure the adapter to the FMC carrier board. Mechanical stability under vibration or repeated insertion is ensured only when using TI-recommended mounting torque (0.4–0.5 N·m) and flatness-controlled carrier boards.