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Single-Channel ADCs offer optimized SNR, power consumption.

May 15, 2008 - Respectively, 40 MSPS ADS5560 and 80 MSPS ADS5562 are 16-bit ADCs that provide up to 96.2 and 95.9 dB SNR for input frequencies within first Nyquist zone while consuming as little as 528 and 693 mW of power. Dynamic power scaling for ADS5562 further reduces power consumption to as little as 540 mW at 25 MSPS. Offered in 7 x 7 mm, 48-pin QFN package, both products incorporate low-frequency noise suppression mode and programmable gain from 0-6 dB.

Related categories: Test and Measuring Instruments

Press Release
Release date: May 12, 2008

TI Introduces 16-Bit, 40- and 80-MSPS Data Converters Featuring Industry's Highest Signal-to-Noise Ratio

Ultra-low noise floor and flexible digital features optimize performance in test and measurement, communications and imaging applications

DALLAS, May 12 -- Texas Instruments Incorporated (TI) (NYSE:TXN) today introduced a family of 16-bit, single channel, 40- and 80-MSPS analog-to-digital converters (ADCs) which provide the highest signal-to-noise ratio (SNR) with very low power consumption. The devices' low noise floor improves accuracy in test and measurement, receiver sensitivity in wireless communications, and image quality in medical, industrial and military applications. (See http://www.ti.com/ads5562-pr).

The ADS5562, featuring a sample rate of 80 MSPS, and ADS5560, offering 40 MSPS, provide the highest signal-to-noise ratio (SNR) for input frequencies within the first Nyquist zone while consuming very little power. For instance, the ADS5562 offers 6 dB greater SNR and 0.6 more effective bits than any other 80-MSPS device consuming less than 900mW of power. The device also offers dynamic power scaling, reducing power consumption to as little as 540mW at 25 MSPS.

The ADS5562 and ADS5560 include an array of other digital features to give designers added flexibility. To further reduce noise, the devices offer a low-frequency noise suppression mode to eliminate the 1/f (flicker) noise, improving SNR by up to 4.2 dB over a 1-MHz band in baseband and time-domain applications. In addition, programmable gain from 0 dB to 6 dB allows full scale outputs to be provided for input signals as low as 2 Volts peak to peak (Vpp). To further add to the devices' flexibility, designers can choose between parallel CMOS or fully-differential double data rate (DDR) LVDS outputs, which can enable up to 2 dB additional SNR performance.

To simplify design and speed time to market, TI offers a wide variety of devices to complete the signal chain, including those listed below.

  Application      Data        Amplifier   Clock      RF         DSP

                   converter



  Test and         DAC5681     OPA695      CDCM7005              C6000

  Measurement

  Wireless         DAC5688     THS4509     CDCM7005   TRF3703    C6000

  Communications                                      TRF3710

                                                      TRF3761

  Imaging          DAC5682Z    THS4520     CDCM7005              DaVinci

                   DAC5672

Availability and packaging

The ADS5562 and ADS5560 are available today in a compact 7 x 7 mm, 48-pin QFN package. Pricing is listed below for each device in 1000-piece quantities. Samples, EVMs and capture cards for a rapid and cost-effective evaluation are available from http://www.ti.com/dataconverters.

  Part      Speed     Analog   SNR         SNR with      SFDR     Price

                      Power    (3 MHz      1/f           (3 MHz   (1ku)

                               Fin)        suppression   Fin)

                                           (dc to 2

                                           MHz)



  ADS5562   80 MSPS   693 mW   84.0 dBFS   95.9          85 dBc   $48.33

  ADS5560   40 MSPS   528 mW   84.3 dBFS   96.2          90 dBc   $35.00

The ADS5562 and ADS5560 are the latest additions to TI's world-class high-speed and precision data converters designed to address a range of applications including industrial, communications, audio and medical. To download the latest Amplifier and Data Converter Selection Guide, visit the Analog eLab(TM) Design Center at http://www.ti.com/analogelab.

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 25 countries. For more information, go to http://www.ti.com/

Please refer all reader inquiries to:
Texas Instruments Incorporated Semiconductor Group, SC-08053
Literature Response Center
14950 FAA Blvd.
Fort Worth, TX 76155
1-800-477-8924

Trademarks

eLab is a trademark of Texas Instruments. All trademarks and registered trademarks are property of their respective owners.

Company Information:
Name: Texas Instruments, Inc. (TI)
Address: 12500 TI Blvd.
City: Dallas
State: TX
ZIP: 75243-4136
Country: USA
Phone: 800-336-5236
FAX: 972-995-4360
http://www.ti.com/

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