Texas Instruments introduces simultaneous sampling ADCs for power quality management, power protection and motor control applications

SAR analog-to-digital converter offers 3.5 dB-better SNR and more than twice the sampling rate of competitive devices

DALLAS, Oct. 14 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) introduced today a family of 16-, 14- and 12-bit simultaneous sampling successive approximation register (SAR) analog-to-digital converters (ADCs) with high-voltage inputs. The ADS8556, ADS8557 and ADS8558 offer a sampling range of 730 kSPS and signal-to-noise ratio (SNR) up to 91.5 dB, and include the industry's only simultaneous sampling ADC that offers true, 16-bit no missing codes (NMC) performance. The new ADCs allow designers to maximize performance when connecting to a wide range of inputs or sensor types in applications including multi-axis motor control, simultaneous data acquisition, robotics, power quality management and power protection. For product details see: www.ti.com/ads8556-pr

Key features and benefits

    --  SNR of 91.5 db (typical) is up to 3.5 db better than the competition,
        for higher resolution of dynamic range signals; sampling rate of  730
        kSPS per channel is more than twice that of the closest competitor

        --  ADS8556 (16-bit) 91.5 SNR; 2x faster
        --  ADS8557 (14-bit) 85 SNR; 2.5x faster
        --  ADS8558 (12-bit) 73.9 SNR; ~3x faster
    --  True bipolar inputs with software-selectable input ranges up to +/-12 V
        allow easy connectivity to a wide range of inputs and sensors
    --  Low power dissipation of 298.5 mW at maximum data rate; 150 mW at 250
        kSPS
    --  Excellent performance and external conversion for multiple device
        synchronization, resulting in flexible and expandable systems
    --  The device's performance is maximized when used with TI's low-noise
        operational amplifiers: the low-noise, high-precision OPA827 featuring a
        FET input for high-impedance output sources; and the OPA211, TI's
        low-power, lowest noise +/-18-V op amp. These ADCs work well with many
        microcontrollers and embedded controllers, including TI's TMS320F2812.

Availability and pricing

The ADS8556 is available today in an LQFP-64 package and is pin-compatible with the 14-bit ADS8557 and the 12-bit ADS8558. Pricing in 1,000-unit quantities is $15.95 (ADS8556), $10.95 (ADS8557) and $8.95 (ADS8558).

Find out more about TI's high-performance ADCs by visiting the links below:

    --  Order ADS855x samples at  www.ti.com/ads8556-pr
    --  Quickly search TI's entire data converter portfolio or download the
        latest selection guide: www.ti.com/dataconverters-pr
    --  View TI Senior Application Engineer Bonnie Baker's video "Analog
        Tutorial - The Basics of Effective Number of Bits" at
        www.ti.com/bitselection-pr
    --  Ask questions and share knowledge on TI's E2E online community:
        http://www.ti.com/e2e-pr

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

Trademarks

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

SOURCE Texas Instruments Incorporated

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




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