Texas Instruments ADC3443EVM

Overview

ADC3443EVM from Texas Instruments is an evaluation module designed to assess the ADC3443 - a quad-channel, 14-bit, 80 MSPS analog-to-digital converter with serial LVDS interface. 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-speed data acquisition systems requiring precise timing and low-noise sampling.

For engineers reviewing the ADC3443EVM datasheet, ADC3443EVM pinout, ADC3443EVM application, or ADC3443EVM 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 ADC3443EVM implements a dual-transformer analog input path for improved amplitude/phase balance across four channels, with default 50-Ω termination and support for both AC- and DC-coupled operation via resistor swaps. It uses a 1:1 impedance-ratio transformer network per channel and accepts single-ended SMA clock input routed through a 1:4 impedance-ratio transformer to boost amplitude for optimal ADC sampling.

Power is derived from a 5-V barrel jack input, regulated via TPS62080 DC/DC converter and TPS7A4700 low-noise LDOs to generate 1.8 V for the ADC and USB interface. Jumpers JP6 and JP7 configure LDO bypassing, while JP1 controls hardware power-down functionality - all documented in the SLAU579D user's guide.

Key Specifications

Availability

ADC3443EVM is available at Aetrix Electronics and suitable for high-speed test equipment, communications infrastructure prototyping, and radar signal chain development requiring stable component supply and full evaluation capability.

Supply support for ADC3443EVM 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 ADC3443EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate validation of LVDS-output, multi-channel, 12-/14-bit converters in demanding RF and instrumentation applications.

FAQ

What is the primary function of the ADC3443EVM?

The ADC3443EVM is an evaluation module built to characterize and validate the ADC3443 - a quad-channel, 14-bit, 80 MSPS analog-to-digital converter with LVDS output. It provides complete signal conditioning, clock distribution, power regulation, and SPI-based GUI control to enable rapid system-level testing of the ADC3443 in real-world high-speed data acquisition scenarios.

Which ADC device does the ADC3443EVM evaluate?

The ADC3443EVM evaluates the ADC3443, a specific member of TI's ADC3xxx family: a quad-channel, 14-bit, 80 MSPS serial LVDS-output analog-to-digital converter. It is not compatible with JESD204B devices like ADC34Jxx variants - those require the ADC34JxxEVM variant with onboard LMK04828 clock generator.

How is analog input configured on the ADC3443EVM?

The ADC3443EVM supports four analog input channels via SMA connectors J1–J8, using a dual-transformer architecture for balanced differential signaling. Default configuration uses 50-Ω termination formed by two 25-Ω resistors tied to VCM, optimized for first-two-Nyquist-zone operation. DC-coupling requires resistor swaps per Table 6 in the SLAU579D guide.

What power supply requirements does the ADC3443EVM have?

The ADC3443EVM requires a 5-V DC input rated for ≥3 A, delivered via the barrel jack (J15). Internally, it generates 1.8 V for the ADC and USB interface using the TPS62080 buck converter and TPS7A4700 low-noise LDO. JP6 and JP7 jumpers select between LDO regulation or direct switcher output for the 1.8-V rail.

Can the ADC3443EVM be used with the TSW1400 data capture platform?

Yes - the ADC3443EVM features an HSMC connector (J13A/B) that is electrically and mechanically compatible with the TSW1400 evaluation platform. This interface enables real-time streaming of LVDS-formatted digital output from the ADC3443 for FFT analysis, SNR measurement, and dynamic performance validation using TI's HSDC Pro software.