Voltage feedback amplifier touts lowest power

Dallas, Tex. — Texas Instruments Inc. (TI) has introduced a high-speed, unity gain stable, voltage feedback amplifier that features more than 90 percent less power than devices with comparable slew rates in the market today, according to the company. The new device's unique architecture provides high bandwidth and slew rate, coupled with a very low quiescent current, making it well-suited for portable instrumentation, active filters and analog-to-digital converter (ADC) buffers.

The OPA2889 consumes only 460 uA of quiescent current per channel. Coupled with the ultra-low power, the high bandwidth of 115 MHz and slew rate of 250 V/us, allows customers to process data faster and more efficiently. The device also includes a power down feature, enabling even further power savings by reducing the quiescent current to 18 uA/channel when not in use.

Along with the bandwidth and slew rate capabilities, the OPA2889 offers a flexible single supply voltage range of +2.6 V to +12 V or dual-supply voltage range of ±1.3 V to ±6 V. In addition, it provides a large output swing of 8 Vpp and output current of ±40 mA. These features minimize signal distortion to increase fidelity while giving designers greater flexibility, said TI.

Pricing: Suggested resale pricing is $1.35 in quantities of 1,000.
Availability: The OPA2889 is available today in a SOIC-8 and MSOP-10 package. Samples and evaluation modules of the OPA2889 and other devices are available at
Product information: OPA2889 and Amplifier and Data Converter Selection Guide

Texas Instruments Inc. , 1-800-477-8924,

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