Texas Instruments ADS5271EVM

Overview

ADS5271EVM from Texas Instruments is an evaluation module designed to simplify performance validation of the ADS5271 - a 10-bit, 40–70 MSPS, 8-channel analog-to-digital converter with LVDS outputs and transformer-coupled single-ended inputs. It supports internal/external reference selection, register-level control via RS-232, and interoperability with the ADSDeSer-50EVM for data deserialization in high-speed data acquisition systems.

For engineers reviewing the ADS5271EVM datasheet, ADS5271EVM pinout, ADS5271EVM application, or ADS5271EVM equivalent, this page delivers verified board-level specifications, power architecture, signal interface details, software-controlled register access, and integration guidance for ADC evaluation workflows.

Technical Context

The ADS5271EVM implements a complete test platform for the ADS5271 ADC, featuring SMA-input signal conditioning (no coupling capacitors, only series resistors), on-board microcontroller (CY8C27243-24PVXI) for serial register access, and dedicated LVDS output routing to P6 for connection to the ADSDeSer-50EVM. It supports both sinusoidal and square-wave clock inputs up to the device's maximum rated frequency.

Power delivery includes four independent rails: AVDD (3.3 V analog), DVDD (3.3 V digital for MCU and level shifter), LVDD (1.8–3.3 V for LVDS drivers), and AW (3.3 V clock driver supply). All can be sourced from a single 3.3 V supply for simplified lab setup, while SW3 enables external reference selection via REFT/REFB pins on P1.

Key Specifications

Availability

ADS5271EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, communications receiver testing, and multi-channel instrumentation applications requiring stable component supply and validated evaluation infrastructure.

Supply support for ADS5271EVM 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 data converter technologies for industrial, automotive, and communications markets.

The ADS5271EVM belongs to TI's precision data converter evaluation platform family, engineered to accelerate ADC characterization, system integration, and firmware development for time-critical, multi-channel digitization applications.

FAQ

What is the primary function of the ADS5271EVM?

The ADS5271EVM is a dedicated evaluation module for the ADS5271 10-bit, 8-channel, 40–70 MSPS ADC. It provides transformer-coupled SMA inputs, LVDS output routing to P6, RS-232 register control via CY8C27243 MCU, and pushbutton-driven reference/power/reset functions - enabling full functional validation of the ADS5271 without custom hardware design.

Does the ADS5271EVM support external reference input?

Yes, the ADS5271EVM supports external reference input via REFT and REFB pins on terminal block P1. By asserting SW3, the ADS5271 device switches from its default internal reference to the externally supplied reference pair, allowing precise voltage calibration and noise-sensitive measurement setups using the ADS5271EVM.

How is the ADS5271EVM powered?

The ADS5271EVM requires four supply rails: AVDD (3.3 V analog), DVDD (3.3 V digital), LVDD (1.8–3.3 V LVDS driver), and AW (3.3 V clock driver). All rails may be sourced from a single 3.3 V supply for bench evaluation, simplifying lab setup while maintaining functional integrity of the ADS5271EVM.

Can the ADS5271EVM operate independently of the ADSDeSer-50EVM?

Yes, the ADS5271EVM operates independently for ADC configuration, register access, and basic signal capture. However, LVDS data deserialization requires connection to the ADSDeSer-50EVM via P6. Without it, raw LVDS bitstreams are accessible but not converted to parallel format - limiting real-time analysis unless external deserialization hardware is used with the ADS5271EVM.

What software is required to control the ADS5271EVM?

The ADS5271EVM uses proprietary Windows-based software distributed on CD and available from TI's website. It provides COM port selection, register read/write, custom 12-bit pattern generation (even for 10-bit ADS5271), LSB/MSB-first mode toggle, and remote reset - all communicating over the DB9 serial interface to configure the ADS5271 device through the onboard CY8C27243 MCU.