Texas Instruments ADS41B29EVM

Overview

ADS41B29EVM from Texas Instruments is an evaluation module designed to characterize the ADS41B29 12-bit, 250-MSPS analog-to-digital converter under controlled 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 ADS41B29EVM datasheet, ADS41B29EVM pinout, ADS41B29EVM application, or ADS41B29EVM equivalent, this page details jumper-configurable power options (LDO vs. buck), clock routing paths (direct SMA J19 vs. VCXO+CDCE72010 filtered LVCMOS), analog input modes (transformer vs. THS4509 amplifier), and LVDS output capture via J10 for FFT-based performance validation using HSDC Pro and TSW1400.

Technical Context

The ADS41B29EVM implements a modular, jumper-driven architecture enabling rapid reconfiguration between three core functional domains: power delivery (TPS62562 buck or TPS79618 LDO for 1.8-V AVDD/DVDD), clock interface (direct 1.5-Vpp sine-wave at J19 or 245.76-MHz crystal-filtered LVCMOS from CDCE72010 Y0), and analog input path (Mini-Circuits ADT4-1WT transformer pair or THS4509 differential amplifier).

Jumper settings define operational mode without firmware: JP12 selects parallel register control (default) versus SPI, JP1–JP4 configure CDCE72010 enable/reset/VCXO, and R113/R114/R115 route clock source to ADC-enabling deterministic setup for SNR, SFDR, and ENOB measurement across sampling rates up to 250 MSPS.

Key Specifications

Availability

ADS41B29EVM is available at Aetrix Electronics and suitable for high-speed data acquisition systems, communications test equipment, radar receiver prototyping, and instrumentation requiring stable component supply for ADC characterization and system-level timing validation.

Supply support for ADS41B29EVM 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 converter technologies, with over 90 years of innovation in precision signal chain solutions.

The ADS41B29EVM belongs to TI's high-speed ADC evaluation platform family, engineered specifically to accelerate design-in and performance verification of pipeline ADCs in RF sampling, spectrum monitoring, and digital oscilloscope applications.

FAQ

What is the primary function of the ADS41B29EVM?

The ADS41B29EVM is a hardware evaluation platform for the ADS41B29 12-bit, 250-MSPS analog-to-digital converter. It enables engineers to measure key performance metrics-including SNR, SFDR, and ENOB-under real-world conditions by providing configurable power, clock, analog input, and digital output interfaces. The ADS41B29EVM does not contain the ADS41B29 IC itself but is designed exclusively to host and evaluate it.

Which ADC does the ADS41B29EVM support?

The ADS41B29EVM is specifically designed for the ADS41B29, a 12-bit, 250-MSPS pipeline ADC with LVDS output and integrated reference. While the EVM user guide notes compatibility with other ADS41xx devices (e.g., ADS4129, ADS4149), its layout, jumper defaults, and signal integrity tuning are optimized for the ADS41B29's pinout, power sequencing, and timing requirements.

How is clocking configured on the ADS41B29EVM?

The ADS41B29EVM supports two main clocking methods: (1) direct injection of a 1.5-Vpp sine wave into SMA connector J19 (default), converted to differential AC-coupled clock for the ADS41B29; or (2) onboard generation using a factory-programmed CDCE72010 clock buffer and optional 983.04-MHz VCXO, producing a 245.76-MHz LVCMOS clock at Y0 with crystal filtering. Jumper R114 and R115 select the path.

Can the ADS41B29EVM operate without an external power supply?

No-the ADS41B29EVM requires an external 3.3-V DC supply connected between banana jacks J16 (3.3-V input) and J12 (GND). It does not include onboard power conversion from AC or USB. All internal rails-including 1.8-V AVDD/DVDD for the ADS41B29-are derived from this input using either the TPS62562 buck converter or TPS79618 LDO, selected via jumpers JP13, JP14, JP17, and JP19.

What software tools are required to use the ADS41B29EVM?

The ADS41B29EVM is validated with Texas Instruments' High Speed Data Converter Pro (HSDC Pro) software and the TSW1400 data capture board. HSDC Pro provides FFT, histogram, and spectral analysis; the TSW1400 connects directly to J10 and auto-terminates LVDS outputs. No proprietary firmware or driver installation beyond TI's standard USB CDC drivers is required to begin evaluation of the ADS41B29EVM.