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

ADS5281

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Eight-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter (ADC)

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Data sheet

ADS5281

ACTIVE
Data sheet Order now

Product details

Sample rate (max) (Msps) 50 Resolution (Bits) 12 Number of input channels 8 Interface type Parallel LVDS Analog input BW (MHz) 520 Features Low Power Rating Catalog Peak-to-peak input voltage range (V) 2 Power consumption (typ) (mW) 512 Architecture Pipeline SNR (dB) 70 ENOB (Bits) 11.3 SFDR (dB) 85 Operating temperature range (°C) -40 to 85 Input buffer No
Sample rate (max) (Msps) 50 Resolution (Bits) 12 Number of input channels 8 Interface type Parallel LVDS Analog input BW (MHz) 520 Features Low Power Rating Catalog Peak-to-peak input voltage range (V) 2 Power consumption (typ) (mW) 512 Architecture Pipeline SNR (dB) 70 ENOB (Bits) 11.3 SFDR (dB) 85 Operating temperature range (°C) -40 to 85 Input buffer No
VQFN (RGC) 64 81 mm² (9 mm × 9 mm) HTQFP (PFP) 80 196 mm² (14 mm × 14 mm)
  • Speed and Resolution Grades:
    • ADS5281: 12-bit, 50MSPS
    • ADS5282: 12-bit, 65MSPS
  • Power Dissipation:
    • 48mW/Channel at 30MSPS
    • 55mW/Channel at 40MSPS
    • 64mW/Channel at 50MSPS
    • 77mW/Channel at 65MSPS
  • 70dBFS SNR at 10MHz IF
  • Analog Input Full-Scale Range: 2VPP
  • Low-Frequency Noise Suppression Mode
  • 6dB Overload Recovery In One Clock
  • External and Internal (Trimmed) Reference
  • 3.3V Analog Supply, 1.8V Digital Supply
  • Single-Ended or Differential Clock:
    • Clock Duty Cycle Correction Circuit (DCC)
  • Programmable Digital Gain: 0dB to 12dB
  • Serialized DDR LVDS Output
  • Programmable LVDS Current Drive, Internal Termination
  • Test Patterns for Enabling Output Capture
  • Straight Offset Binary or Two’s Complement Output
  • Package Options:
    • 9mm × 9mm QFN-64
    • HTQFP-80 PowerPAD Compatible with ADS527x Family
  • Speed and Resolution Grades:
    • ADS5281: 12-bit, 50MSPS
    • ADS5282: 12-bit, 65MSPS
  • Power Dissipation:
    • 48mW/Channel at 30MSPS
    • 55mW/Channel at 40MSPS
    • 64mW/Channel at 50MSPS
    • 77mW/Channel at 65MSPS
  • 70dBFS SNR at 10MHz IF
  • Analog Input Full-Scale Range: 2VPP
  • Low-Frequency Noise Suppression Mode
  • 6dB Overload Recovery In One Clock
  • External and Internal (Trimmed) Reference
  • 3.3V Analog Supply, 1.8V Digital Supply
  • Single-Ended or Differential Clock:
    • Clock Duty Cycle Correction Circuit (DCC)
  • Programmable Digital Gain: 0dB to 12dB
  • Serialized DDR LVDS Output
  • Programmable LVDS Current Drive, Internal Termination
  • Test Patterns for Enabling Output Capture
  • Straight Offset Binary or Two’s Complement Output
  • Package Options:
    • 9mm × 9mm QFN-64
    • HTQFP-80 PowerPAD Compatible with ADS527x Family

The ADS528x is a family of high-performance, low-power, octal channel analog-to-digital converters (ADCs). Available in either a 9mm × 9mm QFN package or an HTQFP-80 package, with serialized low-voltage differential signaling (LVDS) outputs and a wide variety of programmable features, the ADS528x is highly customizable for a diversity of applications and offers an unprecedented level of system integration. An application note, XAPP774 (available at www.xilinx.com), describes how to interface the serial LVDS outputs of TI&3146;s ADCs to Xilinx field-programmable gate arrays (FPGAs). The ADS528x family is specified over the industrial temperature range of –40°C to +85°C.

The ADS528x is a family of high-performance, low-power, octal channel analog-to-digital converters (ADCs). Available in either a 9mm × 9mm QFN package or an HTQFP-80 package, with serialized low-voltage differential signaling (LVDS) outputs and a wide variety of programmable features, the ADS528x is highly customizable for a diversity of applications and offers an unprecedented level of system integration. An application note, XAPP774 (available at www.xilinx.com), describes how to interface the serial LVDS outputs of TI&3146;s ADCs to Xilinx field-programmable gate arrays (FPGAs). The ADS528x family is specified over the industrial temperature range of –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-Bit Octal-Channel ADC Family Up to 65MSPS. datasheet (Rev. I) Jun 1, 2012
* Errata Errata to ADS528x, Datasheet Literature Number SBAS397 (Rev. B) Oct 19, 2007
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 Understanding Serial LVDS Capture in High-Speed ADCs Jul 10, 2013
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
User guide ADS528x User's Guide Jan 18, 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

ADS5281EVM — ADS5281 Eight-Channel, 12-Bit, 50-MSPS Analog-to-Digital Converter Evaluation Board

Special Note: Customers looking to evaluate the ADS528x, should order a ADS528xEVM, a ADSDESER-50EVM, and a ADSDESER-50EVM Adapter Card.

The ADS5281EVM provides a platform for evaluating the eight-channel ADS5281 analog-to-digital converter (ADC) under various signal, reference, and supply (...)

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GUI for evaluation module (EVM)

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 (...)

Supported products & hardware
Support software

HSADC-SPI-UTILITY — ADS5400 EVM GUI

Supported products & hardware
Simulation model

ADS5281/82/87 IBIS Model

SBOC249.ZIP (360 KB) - IBIS model
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Calculation tool

ADC-HARMONIC-CALC — ADC Frequency Calculator Download

    The ADC Harmonic Calculation tool is an excel based calculator for determining the location in frequency space of high order harmonics following Nyquist aliasing in an analog to digital converter.

    Given an ADC sample rate and the span of a signal of interest the calcultor will determine if the 2nd (...)

Supported products & hardware
Calculation tool

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

Supported products & hardware
Calculation tool

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.

Supported products & hardware
Design tool

SBAC119 — TIGAR (Texas Instruments Graphical Evaluation of ADC Response Tool)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN (RGC) 64 Ultra Librarian
HTQFP (PFP) 80 Ultra Librarian
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