Texas Instruments introduces the lowest power 250-MSPS, 14-bit ADC

New data converter uses 30 percent less power in software defined radios, test and measurement, and wireless communications systems

DALLAS, Nov. 30 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced the first in a new class of high-speed analog-to-digital converters (ADCs) delivering ultra-low power consumption and excellent dynamic performance across wide signal bandwidths from DC up to 550 MHz. At the maximum sample rate of 250 mega samples per second (MSPS), the 14-bit ADS4149 consumes 30 percent less power, while delivering 3-dB greater signal-to-noise ratio (SNR) than the nearest low-power ADC. This combination of power and performance enables greater efficiency and density while enhancing range and sensitivity in defense, test and measurement, and communications applications. For more information and to order samples, visit www.ti.com/ads4149-pr

"Designers of wide-bandwidth applications are challenged to deliver smaller, more portable systems with increased efficiency, while still meeting the highest performance specifications," said Art George, senior vice president of TI's High-Performance Analog business unit. "This new class of ADCs sets low power benchmarks and allows designers to create denser and more compact systems that extend battery life in radios and test equipment."

Key features and benefits of the ADS4149

    --  ADS4149 consumes as little as 275 mW per channel at 250 MSPS, while
        offering 72.5-dB SNR at 100-MHz input frequency.  Dynamic power scaling
        reduces power consumption to 215 mW at 160 MSPS.
    --  Optional buffered analog input provides constant input impedance across
        time and frequency and eliminates sample-and-hold kickback, simplifying
        input matching for passive and active analog front ends, while reducing
        pass band ripple.
    --  A 1- to 6-dB programmable gain option gives customers flexibility to
        trade off between SNR and spurious free dynamic range (SFDR) with
        lowered input voltage swing.
    --  ADS4149 family includes pin-compatible 12- and 14-bit options at 160 and
        250 MSPS and buffered devices to enable customers to easily move to
        lower resolutions and samples rates without altering their core design.
    --  Migration path from the ADS6149 allows customers to shift to lower power
    --  TI's TSW1200 digital capture tool facilitates rapid analysis of the
        ADS4149 evaluation module (EVM).  Available high-speed mezzanine
        connector (HSMC) and FPGA mezzanine connector (FMC) allow ADS4149 EVMs
        to mate to FPGA EVMs for system-level prototyping to speed development

Customers can further speed time-to-market with a complete signal chain for software defined radio and test equipment: dual, 16-bit, 1-GSPS digital-to-analog converter (DAC) ( DAC5682Z); wideband, fully differential amplifier ( THS4509); programmable digital up and down converter ( GC5016); digital pre-distortion solution with crest factor reduction ( GC5325); direct quadrature modulator ( TRF3703); frequency synthesizer ( TRF3761); low-jitter clock generator and synchronizer ( CDCE62005, CDCE72010); and high-performance digital signal processors (DSP) ( TMS320C6472).

Availability and packaging

The ADS4149 and companion single configuration parts are available today in a 48-pin QFN package. The ADS4149 is priced at $89 in 1,000-unit quantities. Multi-channel options will be available in 1H2010.

Find out more about TI's data converters at the links below:

    --  ADS4149 evaluation modules and samples: www.ti.com/ads4149-pr
    --  ADS4149 video demonstration: www.ti.com/ads4149-prv
    --  HSMC and FMC interposer cards: www.ti.com/hsmcadc-pr  and

About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through manufacturing, design and sales operations in more than 30 countries. For more information, go to www.ti.com


All registered trademarks and other trademarks belong to their respective owners.


Web site: http://www.ti.com/

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