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Analog-to-digital converters (ADCs)
High-speed ADCs (≥10 MSPS)

ADS4129

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12-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

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ADS4129

ACTIVE
Data sheet Order now

Product details

Sample rate (max) (Msps) 250 Resolution (Bits) 12 Number of input channels 1 Interface type DDR LVDS, Parallel CMOS Analog input BW (MHz) 550 Features Low Power Rating Catalog Peak-to-peak input voltage range (V) 2 Power consumption (typ) (mW) 265 Architecture Pipeline SNR (dB) 70.2 ENOB (Bits) 11.2 SFDR (dB) 88 Operating temperature range (°C) -40 to 85 Input buffer No
Sample rate (max) (Msps) 250 Resolution (Bits) 12 Number of input channels 1 Interface type DDR LVDS, Parallel CMOS Analog input BW (MHz) 550 Features Low Power Rating Catalog Peak-to-peak input voltage range (V) 2 Power consumption (typ) (mW) 265 Architecture Pipeline SNR (dB) 70.2 ENOB (Bits) 11.2 SFDR (dB) 88 Operating temperature range (°C) -40 to 85 Input buffer No
VQFN (RGZ) 48 49 mm² (7 mm × 7 mm)
  • Maximum Sample Rate: 250MSPS
  • Ultralow Power with 1.8V Single Supply:
    • 201mW Total Power at 160MSPS
    • 265mW Total Power at 250MSPS
  • High Dynamic Performance:
    • SNR: 70.6dBFS at 170MHz
    • SFDR: 84dBc at 170MHz
  • Dynamic Power Scaling with Sample Rate
  • Output Interface:
    • Double Data Rate (DDR) LVDS with Programmable Swing and Strength
      • Standard Swing: 350mV
      • Low Swing: 200mV
      • Default Strength: 100Ω Termination
      • 2x Strength: 50Ω Termination
    • 1.8V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6dB for SNR/SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down To 200mVPP
  • Package: QFN-48 (7mm × 7mm)

PowerPAD is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.
  • Maximum Sample Rate: 250MSPS
  • Ultralow Power with 1.8V Single Supply:
    • 201mW Total Power at 160MSPS
    • 265mW Total Power at 250MSPS
  • High Dynamic Performance:
    • SNR: 70.6dBFS at 170MHz
    • SFDR: 84dBc at 170MHz
  • Dynamic Power Scaling with Sample Rate
  • Output Interface:
    • Double Data Rate (DDR) LVDS with Programmable Swing and Strength
      • Standard Swing: 350mV
      • Low Swing: 200mV
      • Default Strength: 100Ω Termination
      • 2x Strength: 50Ω Termination
    • 1.8V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6dB for SNR/SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down To 200mVPP
  • Package: QFN-48 (7mm × 7mm)

PowerPAD is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.

The ADS412x/4x are a family of 12-bit/14-bit analog-to-digital converters (ADCs) with sampling rates up to 250MSPS. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V supply. The devices are well-suited for multi-carrier, wide bandwidth communications applications.

The ADS412x/4x have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.

The ADS412x/4x are available in a compact QFN-48 package and are specified over the industrial temperature range (–40°C to +85°C)

The ADS412x/4x are a family of 12-bit/14-bit analog-to-digital converters (ADCs) with sampling rates up to 250MSPS. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V supply. The devices are well-suited for multi-carrier, wide bandwidth communications applications.

The ADS412x/4x have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.

The ADS412x/4x are available in a compact QFN-48 package and are specified over the industrial temperature range (–40°C to +85°C)
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet 12-/14-Bit, 160/250MSPS, Ultralow-Power ADC datasheet (Rev. G) Jan 20, 2011
* User guide Interfacing Altera FPGAs to ADS4249 and DAC3482 (TIDA-00069 Reference Guide) Jul 10, 2012
Application note Design Considerations for Avoiding Timing Errors during High-Speed ADC, LVDS Dat (Rev. A) May 22, 2015
Application note Why Use Oversampling when Undersampling Can Do the Job? (Rev. A) Jul 19, 2013
Application note Band-Pass Filter Design Techniques for High-Speed ADCs Feb 27, 2012
Application note High-Speed, Analog-to-Digital Converter Basics Jan 11, 2012
Application note Power Supply Design for the ADS41xx (Rev. A) Dec 29, 2011
Application note Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) Sep 10, 2010
Application note Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio Apr 28, 2009
Application note CDCE62005 as Clock Solution for High-Speed ADCs Sep 4, 2008
Application note CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters Jun 8, 2008
Application note Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 Jun 2, 2008
Application note QFN Layout Guidelines Jul 28, 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADS4129EVM — ADS4129 12-Bit, 250-MSPS Analog-to-Digital Converter Evaluation Module

The ADS4129EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments' ADS4129 device, an extremely low power 12-bit 250 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible environment to (...)

User guide: PDF | HTML
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DATACONVERTERPRO-SW — High Speed Data Converter Pro GUI Installer, v5.31

This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)

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Simulation model

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Calculation tool

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JITTER-SNR-CALC — Jitter and SNR calculator

JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

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Design tool

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Package Pins CAD symbols, footprints & 3D models
VQFN (RGZ) 48 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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