Texas Instruments (TI) Incorporated announced the industry's fastest CMOS operational amplifiers, featuring 200 MHz gain-bandwidth and 360 V/us slew rate. This new op amp family from the company's Burr-Brown product line provides the wide bandwidth and high performance critical to high-speed applications such as video processing, ultrasound, optical networking, photodiode amplifier, communications, and analog-to-digital converter input buffering.

"The OPA355 is the only truly high-speed CMOS op amp on the market," said Frank Haupt, strategic marketing engineer of TI's high-performance amplifier products.

"The OPA355 combines low-voltage operation, rail-to-rail output, digital shutdown, and low cost to deliver an unequaled solution for wide-bandwidth applications requiring exceptional AC performance. These voltage-feedback devices are unity-gain stable and can drive an output current of +/-100 mA. Bandwidth in unity gain is 450 MHz.

Low differential gain and phase error is ideal for demanding video processing applications. All versions (single, dual, and triple) feature a digital shutdown function which provides power savings during idle periods and places the output in a high-impedance state to support output multiplexing.

Texas Instruments Incorporated, Semiconductor Group, SC-00177, Literature Response Center, P.O. Box 954, Santa Clarita, CA 91380, Phone:1-800-477-8924, ext. 4500

TI's Burr-Brown Division refined the design from earlier op amps to fill a need in a niche. The OPAx355 series high-speed, voltage-feedback CMOS operational amplifiers are designed for video and other applications requiring wide bandwidth. It is unity gain stable and can drive an output current of ý100 mA. In addition, the OPAx355 has a digital shutdown function, which provides power savings during idle periods and places the output in a high-impedance state to support output multiplexing. Differential gain is 0.02% and differential phase is a precise 0.05°. Quiescent current may not be as low as the OPA 349 series of 1 microamp/channel but this one has only 8.3mA per channel. Also, the 200 MHz gain-bandwidth offers the needed wide bandwidth and speed for video processing, optical networking, and ADC input buffering.

OPAx355 is used on single or dual supplies as low as 2.5 V (ý1.25 V) and up to 5.5 V (ý2.75 V). Common-mode input range for the OPAx355 extends 200 mV below ground and up to 1.5 V from V+. The output swing is within 100 mV of the rails, supporting wide dynamic range.

The OPAx355 series is available in single (SOT23-6 and SO-8), dual (MSOP-10), and triple (TSSOP-14 and SO-14) versions. Multichannel versions feature independent circuitry for low crosstalk and freedom from interaction.

Available in MicroSize Packages The OPA355 (single) is available in SOT23-6 and SO-8 packages, and suggested resale pricing starts at $1.19 in 1,000 piece quantities. The OPA3355 (triple) is packaged in a TSSOP-14 and SO-14, and suggested resale pricing starts at $2.79 in 1,000 piece quantities. The dual OPA2355 is scheduled to be available in 3Q01.