Texas Instruments ADS4225EVM

Overview

ADS4225EVM from Texas Instruments is an evaluation module designed to accelerate development and characterization of the ADS4225 - a dual-channel, 12-bit, 250-MSPS analog-to-digital converter (ADC). It supports DDR LVDS and parallel CMOS output formats, integrates on-board THS4509 op-amp and CDCE72010 clock synthesizer options, and interfaces directly with TI's TSW1400 high-speed data capture card for real-time waveform analysis.

For engineers reviewing the ADS4225EVM datasheet, ADS4225EVM pinout, ADS4225EVM application, or ADS4225EVM equivalent, this page delivers verified technical context, jumper-configurable signal chain options, software-controlled register access via GUI, and test-ready setup guidance for high-fidelity ADC evaluation in communications, instrumentation, and radar prototyping.

Technical Context

The ADS4225EVM implements a complete signal chain for the ADS4225 ADC, including transformer-coupled or OPA-driven analog inputs (THS4509), selectable clock sources (external 1:4 transformer or on-board CDCE72010 generating 122.88 MHz or 245.76 MHz), and dual-output path configuration (DDR LVDS or 1.8-V parallel CMOS). Jumper-based hardware reconfiguration enables rapid validation of input drive, clocking, and data interface topologies without PCB redesign.

Software control is delivered through the ADS58C28_ADS42xx_GUI, providing full SPI register access to configure gain (chA/chB), data format (2's complement/offset binary), SNRBoost mode, high-frequency/low-speed modes, LVDS/CMOS output selection, offset correction, and clock/data strength settings - all synchronized with TSW1400 capture and FFT analysis.

Key Specifications

Availability

ADS4225EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, RF receiver prototyping, and test equipment development requiring stable component supply, full documentation access, and seamless integration with TI's HSDC Pro ecosystem.

Supply support for ADS4225EVM 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-performance analog products for industrial, automotive, and communications markets.

The ADS4225EVM belongs to TI's high-speed data converter evaluation platform family, engineered specifically to de-risk ADC integration by providing validated reference designs, configurable signal paths, and production-grade software tools for system-level performance validation.

FAQ

What is the primary function of the ADS4225EVM?

The ADS4225EVM is an evaluation module built to demonstrate and validate the ADS4225 dual-channel, 12-bit, 250-MSPS analog-to-digital converter. It provides configurable analog input (transformer or THS4509 op-amp), clock generation (CDCE72010 or external), and digital output (DDR LVDS or parallel CMOS), enabling rapid prototyping and performance characterization of the ADS4225 in real-world signal chains. The ADS4225EVM supports full register control via GUI and direct integration with the TSW1400 capture card.

Which ADC does the ADS4225EVM support?

The ADS4225EVM is specifically designed for the ADS4225 - a dual-channel, 12-bit, 250-MSPS analog-to-digital converter from Texas Instruments. While the board shares mechanical and software compatibility with other ADS42xx devices (e.g., ADS4222, ADS4229), its default jumper settings, schematic optimizations, and documented test procedures are validated for the ADS4225. The ADS4225EVM user guide (SLAU333A) explicitly references ADS4225 throughout functional descriptions and test configurations.

Does the ADS4225EVM include on-board clock generation?

Yes - the ADS4225EVM supports optional on-board clock synthesis using the CDCE72010 programmable clock generator. With a 10-MHz reference and either a 491.52-MHz or 983.04-MHz VCXO, it outputs 122.88 MHz or 245.76 MHz LVCMOS clock signals routed through an on-board crystal BPF to the ADS4225. This eliminates dependency on external high-frequency clock sources and enables stable, low-jitter sampling for precision evaluation. Default operation uses transformer-coupled clock input.

How is the ADS4225EVM controlled and configured?

The ADS4225EVM is controlled via the ADS58C28_ADS42xx_GUI software, installed from the TI-provided installer package. This Windows application provides SPI-based register access to configure gain per channel, data format (2's complement or offset binary), LVDS/CMOS output selection, SNRBoost mode, high-frequency/low-speed operation, offset correction, and clock/data driver strength. Configuration is applied over USB, and register states can be saved to or loaded from text files for reproducible test setups.

Can the ADS4225EVM be used with the TSW1400 capture card?

Yes - the ADS4225EVM is fully interoperable with the TSW1400 high-speed data capture card. The two boards connect via dedicated LVDS interface headers, and the TSW1400 GUI (High Speed Data Converter Pro) includes native ADS422x device support, firmware update capability, and FFT-based performance analysis. The ADS4225EVM user guide details jumper settings, power sequencing, and signal routing required for reliable TSW1400 integration and single-tone or multi-tone evaluation.