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

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SOURCE Texas Instruments Incorporated

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