Texas Instruments ADC3442EVM

Overview

ADC3442EVM from Texas Instruments is a quad-channel, 14-bit, 50 MSPS analog-to-digital converter evaluation module supporting serial LVDS interface. It enables hardware and software validation of the ADC3442 IC in high-speed data acquisition systems, including communications infrastructure and test equipment. The EVM integrates dual-transformer analog input circuitry, onboard 1.8-V LDO power regulation, and USB-based SPI control via HSDC Pro GUI.

For engineers reviewing the ADC3442EVM datasheet, ADC3442EVM pinout, ADC3442EVM application, or ADC3442EVM equivalent, this page delivers verified technical context, key specifications, supply support, and manufacturer background - all focused on rapid evaluation setup, signal integrity validation, and system-level ADC integration with transformer-coupled inputs and configurable power paths.

Technical Context

The ADC3442EVM implements a quad-channel, single-ended SMA input architecture with dual 1:1 impedance-ratio transformers to ensure balanced differential signaling for all four channels. It supports both AC- and DC-coupled configurations via resistor swaps on the top-side PCB, with default 50-Ω termination referenced to VCM.

Power delivery uses a 5-V barrel input routed through an overvoltage protection circuit, then split into 4-V and 2.8-V rails via TPS62080 DC/DC converter; low-noise TPS7A4700 LDOs generate 1.8-V for the ADC and 3.3-V for logic. Jumpers JP6/JP7 select LDO vs. switcher path for the 1.8-V rail.

Key Specifications

Availability

ADC3442EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, communications infrastructure prototyping, and test & measurement equipment development requiring stable component supply and full evaluation capability.

Supply support for ADC3442EVM 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 ADC3442EVM belongs to TI's high-speed ADC evaluation platform family, designed specifically to accelerate validation of quad-channel, 14-bit, sLVDS-output converters in demanding RF sampling and wideband receiver applications.

FAQ

What is the primary function of the ADC3442EVM?

The ADC3442EVM is an evaluation module built to characterize and validate the ADC3442 - a quad-channel, 14-bit, 50 MSPS analog-to-digital converter with serial LVDS output. It provides transformer-coupled analog inputs, configurable power rails, USB-based SPI control, and compatibility with TI's HSDC Pro software. The ADC3442EVM does not perform conversion itself but serves as a reference platform for evaluating the ADC3442 under real-world signal and timing conditions.

Does the ADC3442EVM include an onboard clock generator?

No, the ADC3442EVM does not integrate a clock generator. It requires an external single-ended clock signal applied via SMA connectors J9 (CLK_INP) and J10 (CLK_INM), which are transformer-coupled to produce the differential clock needed by the ADC3442. This differs from JESD204B variants like the ADC34JxxEVM, which incorporate the LMK04828 clock generator. The ADC3442EVM relies entirely on external clocking for ADC3442 operation.

How many analog input channels does the ADC3442EVM support, and what are the connection options?

The ADC3442EVM supports four analog input channels (A–D), each accessible via dedicated SMA connectors: J1/J2 (CH A), J3/J4 (CH B), J5/J6 (CH C), and J7/J8 (CH D). All inputs are transformer-coupled by default for differential signaling, with 50-Ω termination. The board also allows DC-coupled operation via resistor reconfiguration per channel, as documented in Table 6 of the SLAU579D user's guide. No FMC or HSMC expansion is included on the ADC3442EVM.

Can the ADC3442EVM be used to evaluate other ADC3xxx-family devices?

The ADC3442EVM is mechanically and electrically optimized for the ADC3442 and closely related quad-channel sLVDS devices (e.g., ADC3421–ADC3444). While pin-compatible within the 8-mm × 8-mm, 56-pin QFN package group, it is not compatible with dual-channel (48-pin QFN) or JESD204B variants (e.g., ADC34Jxx), which require different power routing, clocking, and interface logic. The ADC3442EVM firmware and GUI tabs are specifically mapped to ADC34xx register sets and do not support cross-family device programming.

What software is required to operate the ADC3442EVM?

The ADC3442EVM requires Texas Instruments' HSDC Pro software, installed via the ADC3xxxx_Installer_vxpx package. This GUI provides tabbed register control (Common, ADC34xx), test pattern generation, digital gain adjustment, dither enable/disable, chopper configuration, and LVDS swing control. Communication occurs over Mini-USB (J14) using vendor-specific drivers loaded during first-time connection. The ADC3442EVM does not support standalone operation or third-party software without TI's validated driver stack and register map definitions.