Overview

Features and Benefits

  • SNR = 47 dBFS at fIN up to 250 MHz at 500 MSPS
  • ENOB of 7.5 bits at fIN up to 250 MHz at 500 MSPS (−1.0 dBFS)
  • SFDR = 79 dBc at fIN up to 250 MHz at 500 MSPS (−1.0 dBFS)
  • Excellent linearity
    DNL = ±0.1 LSB typical
    INL = ±0.1 LSB typical
  • Integrated input buffer
  • LVDS at 500 MSPS (ANSI-644 levels)
  • 1 GHz full power analog bandwidth
  • On-chip reference, no external decoupling required
  • Low power dissipation
    670 mW at 500 MSPS—LVDS SDR output
  • See datasheet for additional features

Product Details

The AD9484 is an 8-bit, monolithic, sampling analog-to-digital converter (ADC) optimized for high performance, low power, and ease of use. The part operates at up to a 500 MSPS conversion rate and is optimized for outstanding dynamic performance in wideband carrier and broadband systems. All necessary functions, including a sample-and-hold and voltage reference, are included on the chip to provide a complete signal conversion solution. The VREF pin can be used to monitor the internal reference or provide an external voltage reference (external reference mode must be enabled through the SPI port).

The ADC requires a 1.8 V analog voltage supply and a differential clock for full performance operation. The digital outputs are LVDS (ANSI-644) compatible and support twos complement, offset binary format, or Gray code. A data clock output is available for proper output data timing.

Fabricated on an advanced BiCMOS process, the AD9484 is available in a 56-lead LFCSP, and is specified over the industrial temperature range (−40°C to +85°C). This product is protected under U.S. and international patents.

PRODUCT HIGHLIGHTS

  1. High Performance.
    Maintains 47 dBFS SNR at 500 MSPS with a 250 MHz input.
  2. Ease of Use.
    LVDS output data and output clock signal allow interface to current FPGA technology. The on-chip reference and sample and hold provide flexibility in system design. Use of a single 1.8 V supply simplifies system power supply design.
  3. Serial Port Control.
    Standard serial port interface supports various product functions, such as data formatting, disabling the clock duty cycle stabilizer, power down, gain adjust, and output test pattern generation.

APPLICATIONS

  • Wireless and wired broadband communications
  • Cable reverse path
  • Communications test equipment
  • Low cost digital oscilloscopes
  • Satellite subsystems
  • Power amplifier linearization

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (2)

Documentation & Resources

  • View All (15)
  • Data Sheets (1)
  • Application Notes (12)
  • User Guides (1)
  • Technical Articles (1)
  • Tools & Simulations

    Virtual Eval - BETA

    Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.

    VirtualEval

    IBIS Models

    AD9434/AD9484 IBIS Model

    Design Tools

    Visual Analog

    For designers who are selecting or evaluating high speed ADCs, VisualAnalog™ is a software package that combines a powerful set of simulation and data analysis tools with a user-friendly graphical interface.

    Product Recommendations

    AD9484 Companion Parts

    Recommended Clock Drivers

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    Recommended IF Digital Variable Gain Amplifier

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

    PCN-PDN Information

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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.