Texas Instruments Develops the OPA355 Operational Amplifier
Texas Instruments (TI, Dallas, TX) has developed the OPA355, a new operational amplifier with 200MHz gain-bandwidth and a 360V/us slew rate. The new operational amplifier is suitable for use in video processing, ultrasounds, optical networking, photo-diode amplifiers, communications and ADC input buffering.
TI's new voltage-feedback devices are unity-gain stable and can drive an output current of +/-100mA. Bandwidth in unity gain is 450MHz. All versions (single, dual and triple) feature a digital shutdown function.
The OPA355 family is optimized for operation on single or dual supplies, as low as 2.5V (+/-1.25V) and up to 5.5V (+/-2.75V). The common-mode input range extends 100mV below ground and up to 1.5V from positive supply. Output swing is within 100mV of the rails. Other features include low noise (5.8nV/rt-Hz), low-input bias current (3pA) and low quiescent current (8.3mA per channel).
"The OPA355 is the only truly high-speed CMOS op amp on the market," said Carsten Oppitz, market development engineer at TI. "The OPA355 combines low-voltage operation, rail-to-rail output, digital shutdown and low cost to deliver an unequalled peformance."
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 the third quarter of 2001.
