Analog Devices’ D/A Converter Reduces Cable Head-end Signal Chain Footprint

11-bit AD9737A 2.5-GSPS D/A converter increases number of QAM channels supported per D/A converter by up to 20 times.

Feb 13 2012 - Norwood, MA
  • Analog Devices, Inc., the data converter market share leader, today introduced an 11-bit D/A converter that enables cable television and broadband operators to synthesize the entire cable spectrum up to 1 GHz into a single RF port, while consuming a maximum of 1.1 W of power. The AD9737A 2.5-GSPS D/A converter’s wide bandwidth and dynamic range enable cable infrastructure designers to increase QAM (quadrature amplitude modulation) channel density by 20 times over present cable modem implementations, enabling improved next-generation services such as interactive television, high-definition broadcasts and new specialty channels.

    AD9737A D/A Converter Features and Benefits:

    Pricing, Availability and Complementary Products
    Product Sample Availability Production Release Resolution (Bits) Sample Rate (GSPS) Price Each In 1,000 Quantities Packaging
    AD9737A Now Now 11 2.5 $37.14 160-ball CSBGA


    Complementary components include ADI’s ADCLK914 clock/data buffer that drives the clock input of the AD9737A D/A converter with a 2 V differential swing that achieves jitter performance of 110 fs.

    Data Converters: Bridging the Analog and Digital Worlds

    More designers turn to Analog Devices than any other supplier for the high-performance conversion technology required to bridge the analog and digital worlds in today’s myriad electronic systems. With the industry’s leading portfolio of A/D Converters (analog-to-digital converters) and D/A Converters (digital-to-analog converters), Analog Devices’ converter products feature the right combination of sampling rates, accuracy, and reduced noise, power, price, and package size required in industrial and instrumentation, medical equipment, automotive systems, communications infrastructure, and consumer electronics. Online evaluation tools help customers quickly validate, select, and design in the optimal data converters to reduce design complexity, development schedules, and bill-of-material costs. To view ADI’s A/D converter selection guide, visit For A/D converters drivers, visit To view ADI’s D/A converters selection guide, visit

    • View the AD9737A D/A converter product page, order samples, and download the data sheet.
    • Get support at ADI’s EngineerZone online technical support community.
    • Low noise and intermodulation distortion enable high quality synthesis of wideband signals up to 1 GHz, reducing the number of transmit DACs required in the typical cable plant.
    • Operates from 1.8-V and 3.3-V supplies for a total power consumption of 1.1 W maximum.
    • Dual-port interface with double-data-rate LVDS data receivers supports the maximum conversion rate of 2.5 GSPS.
    • Proprietary switching technique enhances dynamic performance.
    • Output current is programmable from 8.7 mA to 31.7 mA adding flexibility in interface options.
    • Not subject to US data converter export restrictions.
  • Editor's Contact Information
    • Jim Surber
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