Texas Instruments ADS8881EVMV2-PDK

Overview

ADS8881EVMV2-PDK from Texas Instruments is a precision performance development kit for evaluating the ADS8881 18-bit, 1-MSPS SAR ADC and REF6045 4.5-V voltage reference. It integrates the THS4551 fully-differential amplifier, LP38798 and TPS78833 LDOs, and PHI controller for USB 2.0 host interface-enabling full characterization of noise, linearity, spectral performance, and reference settling in lab and design validation environments.

For engineers reviewing the ADS8881EVMV2-PDK datasheet, ADS8881EVMV2-PDK pinout, ADS8881EVMV2-PDK application, or ADS8881EVMV2-PDK equivalent, this kit delivers turnkey support for AC/DC dynamic testing-including time-domain capture, FFT-based spectral analysis (SNR/SFDR/ENOB), histogram-based effective resolution, INL/DNL linearity measurement, and burst-mode reference settling validation-all under Windows 7/8 64-bit with LabVIEW Runtime.

Technical Context

The ADS8881EVMV2-PDK pairs the ADS8881 SAR ADC with the REF6045 reference and THS4551 input driver in a fully buffered, low-noise signal chain. Its analog path includes 1-kΩ SMA-input impedance, 10-nF differential filtering, and 4.99-Ω charge-kickback suppression resistors limiting bandwidth to 1.6 MHz-optimized to preserve 18-bit linearity and <–130 dB THD.

Power is delivered entirely via USB: the PHI supplies dual 3.3-V rails (for EEPROM/digital logic), while the EVM generates clean 5-V (LP38798) and 3.3-V (TPS78833) analog supplies. The onboard VOCM = 2.35 V common-mode generator enables true-differential bipolar (±2.5 V) or unipolar (0–5 V) input configurations without external biasing.

Key Specifications

Availability

ADS8881EVMV2-PDK is available at Aetrix Electronics and suitable for precision data-acquisition system validation, high-resolution sensor interface prototyping, and metrology-grade reference design verification requiring stable component supply and full-characterization toolchain support.

Supply support for ADS8881EVMV2-PDK 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 specializing in analog, embedded processing, and high-performance signal-chain solutions for industrial, automotive, and communications applications.

The ADS8881EVMV2-PDK belongs to TI's Precision Data Acquisition Evaluation Platform family-designed to accelerate validation of ultra-low-noise, high-linearity ADCs and references in demanding test, measurement, and instrumentation systems.

FAQ

What is the ADS8881EVMV2-PDK used for?

The ADS8881EVMV2-PDK is a complete evaluation platform for the ADS8881 18-bit SAR ADC and REF6045 voltage reference. It enables full dynamic performance characterization-including SNR, THD, SFDR, INL/DNL, histogram-based effective resolution, and reference settling behavior-using integrated hardware, USB-powered PHI controller, and Windows-based GUI software with LabVIEW Runtime.

Does the ADS8881EVMV2-PDK require an external power supply?

No. The ADS8881EVMV2-PDK is fully USB-powered via the included PHI controller board. The PHI derives all required voltages-including dual 3.3-V digital rails, 5-V analog (LP38798), and 3.3-V ADC supply (TPS78833)-from the host computer's USB 2.0 port, eliminating need for external bench supplies or adapters.

Which operating systems support the ADS8881EVMV2-PDK GUI software?

The ADS8881EVMV2-PDK GUI software officially supports Microsoft Windows 7® and Windows 8® 64-bit operating systems. It requires administrator privileges for installation, NI LabVIEW™ Runtime Engine, and USB 2.0 (or higher) connectivity. Anti-virus software must be temporarily disabled during installer execution to prevent file quarantine.

Can the ADS8881EVMV2-PDK evaluate single-ended input signals?

Yes. The ADS8881EVMV2-PDK supports single-ended operation by grounding AIN(–) (JP3.2–JP3.3 shunt) and applying 0–5 V or –2.5 V to +2.5 V signals to AIN(+). The THS4551 fully-differential amplifier converts the single-ended input into a differential pair referenced to VOCM = 2.35 V, preserving full 18-bit performance without external circuitry.

What analog input options does the ADS8881EVMV2-PDK provide?

The ADS8881EVMV2-PDK offers SMA coaxial connectors for differential AC signals, 100-mil headers for custom analog sources, and a jumper-configurable onboard DC source (0.1 V, 2.5 V, 3.5 V, or 4.4 V via JP1) driven by the REF6045. All paths route through the THS4551 driver to ensure optimal signal integrity and ADC input matching.