Texas Instruments ADC3441EVM

Overview

ADC3441EVM from Texas Instruments is an evaluation module designed to assess the ADC3441 - a quad-channel, 14-bit, 25 MSPS serial LVDS analog-to-digital converter. It supports transformer-coupled single-ended or differential analog inputs, onboard 1.8-V LDO power regulation, and SPI-based GUI control via mini-USB. The EVM enables performance validation in high-fidelity data acquisition systems requiring precise timing and low-noise sampling.

For engineers reviewing the ADC3441EVM datasheet, ADC3441EVM pinout, ADC3441EVM application, or ADC3441EVM equivalent, this page delivers verified hardware configuration details, jumper settings for power and coupling modes, clock input circuit topology, HSMC interface compatibility with TSW1400, and software-controlled register access for dither, gain, chopper, and test pattern functions.

Technical Context

The ADC3441EVM implements a dual-transformer analog input path for improved amplitude and phase balance across all four channels, with default 50-Ω termination formed by paired 25-Ω resistors referenced to VCM. It uses a 1:1 impedance-ratio transformer for signal inputs and a 1:4 ratio transformer for clock amplification to achieve optimal LVDS-level clock drive.

Power is derived from a 5-V barrel input through a two-stage architecture: a TPS62080 DC/DC converter steps down to 2.8 V, followed by a TPS7A4700 low-noise LDO generating the critical 1.8-V supply for the ADC3441. Jumpers JP6 and JP7 select between LDO and switcher paths, while SW1 provides hardware reset functionality.

Key Specifications

Availability

ADC3441EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, communications test equipment, and instrumentation applications requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for ADC3441EVM 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 data conversion technologies.

The ADC3441EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate prototyping and characterization of the ADC34xx series - targeting applications demanding wide dynamic range, low distortion, and flexible digital interface configuration.

FAQ

What is the primary function of the ADC3441EVM?

The ADC3441EVM is a dedicated evaluation module for the ADC3441 quad-channel, 14-bit, 25 MSPS sLVDS analog-to-digital converter. It provides complete signal conditioning, power regulation, clock interface, and SPI-based GUI control to enable rapid performance validation and system integration testing of the ADC3441 in real-world applications.

Does the ADC3441EVM include an onboard clock generator?

No, the ADC3441EVM does not include an onboard clock generator. It relies on an external single-ended clock source applied via SMA connectors J9 (CLK_INP) and J10 (CLK_INM), which are transformer-coupled to produce the differential clock required by the ADC3441. This distinguishes it from JESD204B variants like the ADC34JxxEVM that integrate the LMK04828 clock chip.

How is analog input coupling configured on the ADC3441EVM?

The ADC3441EVM supports both AC- and DC-coupled analog inputs. By default, it operates in AC-coupled mode using transformer isolation. To enable DC coupling, specific surface-mount resistors must be swapped on the top layer - per Table 6 in the user's guide - replacing R3/R4/R14–R18/R142/R139 with R135/R7/R120/R121/R138/R20/R144/R141 for each channel.

Which data capture platforms is the ADC3441EVM compatible with?

The ADC3441EVM interfaces directly with the TSW1400 high-speed data capture platform via its HSMC connector (J13A/B). This allows real-time streaming of digitized samples into PC-based analysis tools using TI's HSDC Pro software, enabling FFT, SNR, SFDR, and ENOB measurements without custom FPGA development.

Can the ADC3441EVM be used to evaluate other devices in the ADC3xxx family?

The ADC3441EVM is specifically optimized for the ADC3441 but shares mechanical and interface compatibility with other quad-channel sLVDS variants in the ADC34xx series (e.g., ADC3421, ADC3442–ADC3444). However, register maps, gain ranges, and feature sets differ - users must load the correct device profile in HSDC Pro and verify jumper configurations per the target ADC's datasheet requirements.