Low-Power 14-bit A/D Converters Enable High-Performance, Multi-Channel Data Acquisition in Compact Package

8- and 16-channel A/D converters address space constraints in industrial, medical and communications designs.

Jan 14 2014 -Norwood, MA
  • Analog Devices, Inc. (NASDAQ: ADI) introduced today two 14-bit A/D converters that provide the lowest power in the smallest package size in their class. In industrial ultra-sound and instrumentation, healthcare imaging, military countermeasure and communications receiver applications, the 16-channel, 65-MSPS AD9249 and the 8-channel, 125-MSPS AD9681 A/D converters meet designer needs for high-performance, multi-channel data acquisition at low power where a small package size is crucial to the overall design.

    The AD9249 integrates 16 A/D converter channels into a single package and dissipates 58 mW of power per channel at 65 MSPS, which reduces thermal concerns in high-channel-count designs. The 8-channel AD9681 dissipates 110 mW per channel at 125 MSPS. Both converters are available in a compact 10-mm × 10-mm package, feature on-chip sample-and-hold circuit and achieve a spurious free dynamic range greater than 90dBc and signal-to-noise ratio of 74 dBFS or better.

    In addition to low power and a small footprint, the AD9249 and AD9681 A/D converters are easy to use with data clock outputs (DCO±1, DCO±2) that operate at frequencies of up to 500 MHZ and 455 MHz respectively and support double-data-rate operation. They require a single 1.8 V power supply and an LVPECL-/ CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications.

    Pricing and Availability

    Product Sample Availability/Full Production  Channel Count  Power Dissipation

    (Per Channel)

    Price Each Per 1,000  Package 
    AD9249 Now 16 58 mW @ 65 MSPS $113.86  10 mm × 10 mm 144-ball CSP-BGA
    AD9681 Now 8 110 mW @ 125 MSPS $197.20 10 mm × 10 mm 144-ball CSP-BGA
    AD9249-65EBZ Evaluation Board Now 16 58 mW @ 65 MSPS $395 10 mm × 10 mm 144-ball CSP-BGA
    AD9681-125EBZ Evaluation Board Now 8 110 mW @ 125 MSPS $395 10 mm × 10 mm 144-ball CSP-BGA


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