Texas Instruments ADS4142EVM

Overview

ADS4142EVM from Texas Instruments is an evaluation module designed to characterize the ADS4142 14-bit, 65-MSPS analog-to-digital converter under configurable signal, clock, reference, and power supply conditions. It supports transformer-coupled single-ended analog input (J6), external or onboard CDCE72010-derived clocking (up to 245.76 MHz), and dual 1.8-V analog/digital supply generation via TPS62562 switching regulator or TPS79618 LDO.

For engineers reviewing the ADS4142EVM datasheet, ADS4142EVM pinout, ADS4142EVM application, or ADS4142EVM equivalent, this module enables rapid ADC performance validation-including SNR, SFDR, and FFT analysis-using HSDC Pro with TSW1400 capture, while supporting flexible power, clock, and analog input configuration via jumpers and surface-mount zero-ohm resistors.

Technical Context

The ADS4142EVM implements a modular architecture centered on the ADS4142 ADC, with independent control paths for analog input (transformer-coupled or THS4509-amplified), clock sourcing (direct SMA J19 or CDCE72010-based VCXO/PLL), and power delivery (switching regulator TPS62562 or LDO TPS79618). All functional modes are selected via physical jumpers and zero-ohm resistor placements-not firmware.

It integrates TI's standard high-speed data converter evaluation infrastructure: LVDS digital output routing to J10 with 100-Ω termination support, SPI register access via USB-connected TSW1400 or direct GPIO control, and compatibility with HSDC Pro GUI for FFT, histogram, and spectral analysis. The board does not include populated VCXO or crystal filter components by default, requiring user installation per target sampling rate.

Key Specifications

Availability

ADS4142EVM is available at Aetrix Electronics and suitable for high-speed data converter evaluation, RF receiver characterization, and mixed-signal test bench development requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for ADS4142EVM 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, with over 90 years of innovation in precision electronics.

The ADS4142EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically for lab- and production-grade validation of pipeline ADCs in communications, instrumentation, and radar signal chain design.

FAQ

What is the primary function of the ADS4142EVM?

The ADS4142EVM is a hardware evaluation platform for the ADS4142 14-bit, 65-MSPS analog-to-digital converter. It provides configurable analog input (transformer or THS4509-based), clock sourcing (external or CDCE72010-derived), power delivery (LDO or buck), and LVDS digital output capture-enabling full dynamic performance characterization of the ADS4142 under real-world signal chain conditions. The ADS4142EVM itself contains no ADC; it hosts and interfaces with the ADS4142 device.

Does the ADS4142EVM include the ADS4142 IC pre-mounted?

No-the ADS4142EVM is a bare evaluation board and does not ship with the ADS4142 IC installed. Users must solder the ADS4142 device onto the designated footprint per TI's assembly guidelines. The board layout, power sequencing, and signal routing are optimized exclusively for the ADS4142 package and pinout, as documented in the ADS4142 datasheet and ADS41xx/58B18EVM User's Guide.

Which software tools are required to operate the ADS4142EVM?

The ADS4142EVM is validated with Texas Instruments' High Speed Data Converter Pro (HSDC Pro) software, used in conjunction with the TSW1400 data capture board connected via USB and J10. HSDC Pro provides FFT, histogram, spectral analysis, and register-level SPI control. No standalone firmware or embedded processor resides on the ADS4142EVM; all configuration and data acquisition is host-driven through HSDC Pro.

Can the ADS4142EVM support differential analog input without using the THS4509 amplifier?

Yes-the ADS4142EVM supports true differential analog input via SMA connector J8 (not populated by default), which routes directly to the ADS4142's differential input pins through transformer T1. This requires jumper configuration per Table 2-6 (Option 1 modified), removal of R84, and installation of R82/R96 for negative-path routing. The default configuration uses single-ended J6 → transformer → differential ADC input, but J8 enables externally generated differential signals.

What clock sources are supported for the ADS4142 on the ADS4142EVM?

The ADS4142EVM supports three clock configurations: (1) Direct 1.5-Vpp sine-wave input via SMA J19 (default), AC-coupled and transformer-balanced; (2) Onboard 245.76-MHz LVCMOS clock from CDCE72010 (Y0 output) with crystal filter; (3) Differential LVPECL clock from CDCE72010 Y1P/Y1N outputs. All options require specific jumper/resistor settings per Tables 2-3 and 2-4; the VCXO and crystal filter are not pre-populated and must be added by the user.