Wideband Amplifier suits video line driver applications.

Press Release Summary:




Unity-gain stable, high-speed voltage feedback amplifier, Model OPA830, ensures low distortion operation by high gain bandwidth of 110 MHz and high slew rate of 600 V/µsec. Gain of +2 V/V bandwidth exceeds 100 MHz with typical 0.1 dB flatness beyond 25 MHz. Output swings to within 25 mV of either supply while driving 150 ohm load. Device is intended to operate on single 2.8-11 V supply, but can also be used on bipolar ±1.4 to ±5.5 V supplies.



Original Press Release:



TI Introduces Low-Power, Single-Supply, Wideband Amplifier for Video Line Driver Applications



DALLAS (January 12, 2005) - Texas Instruments Incorporated (TI) (NYSE: TXN) today announced a unity-gain stable, high-speed voltage feedback amplifier from the company's Burr-Brown product line. The OPA830 ensures low distortion operation by high-gain bandwidth (110MHz) and high slew rate (600V/usec). This low-power, low-cost amplifier has excellent video line driver specifications and is ideal for a wide-range of other applications including ADC input buffers, consumer electronics and test instrumentation. (See www.ti.com/sc05019.)

"The OPA830 features an exceptional speed versus quiescent power ratio which gives an advantage over competitive products offering rail-to-rail output in a wideband voltage feedback design," said Michael Steffes, strategic marketing manager of TI's high-speed signal processing group. "Operating on less than half the supply current of earlier wideband rail-to-rail output devices, the OPA830 meets or improves the SFDR and noise performance of those earlier devices."

Using only 3.9mA supply current, trimmed at 25C, the OPA830 provides excellent bandwidth and output capability. Gain of +2V/V bandwidth exceeds 100MHz with typical 0.1dB flatness beyond 25MHz. The output swings to within 25mV of either supply while driving a 150-ohm load. The input range extends below the negative supply and to within 1.7V of the positive supply. The device is intended to operate on a single +2.8V to +11V supply, but can also be used on bipolar +/-1.4V to +/-5.5V supplies. Single supply operation matches up well to emerging low-cost ADCs such as the THS1040, 10-bit, 40MSPS converter.

Available Today
The OPA830 is part of a six-member product family available in an industry-standard SO-8 package or an ultra-small SOT23-5 version that is Pb-Free and Green. The device is priced at $0.75 in 1,000 piece quantities (suggested resale pricing) and is available from TI and its authorized distributors. Another single channel version, the OPA832, is also available today for fixed-gain of 2V/V line driver applications. Dual versions for these devices (OPA2830, OPA2832) are currently sampling with introduction scheduled for 2Q05.

TI offers analog engineers a wide-ranging support infrastructure that includes training and seminars, design tools and utilities, technical documentation, evaluation modules, an online KnowledgeBase, a product information hotline and a comprehensive offering of samples that ship within 24 hours of request. For more information on TI´s complete analog design support, and to download the latest Amplifier Selection Guide, visit www.ti.com/analog.

Texas Instruments Incorporated provides innovative DSP and analog technologies to meet our customers' real world signal processing requirements. In addition to Semiconductor, the company's businesses include Sensors & Controls, and Educational & Productivity Solutions. TI is headquartered in Dallas, Texas, and has manufacturing, design or sales operations in more than 25 countries.

Texas Instruments is traded on the New York Stock Exchange under the symbol TXN. More information is located on the World Wide Web at www.ti.com.

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