Tucson, Ariz.--March 19, 1998--Burr-Brown Corp. introduced the low-noise, low-distortion OPA686, a high-speed operational amplifier integratedcircuit offering the highest dynamic range in the industry. Highdynamic range is critical to separating out individual signals incrowded digital receiver applications, such as cellular basestationsand cable modems.
This industry-first combination of low noise and low distortionat low power make the OPA686 ideal for providing a high-qualityamplified signal to an analog-to-digital converter (ADC). High dynamicrange performance is demanded in a wide variety of emergingapplications including IF strip amplifiers for cellular basestations, in which signals can interfere with one another; ultrasound imaging, in whichlow noise and low distortion are required to pull out faint echosignals; and cable modem receivers, in which the line reach is dependentupon the amplifier's input.
In cable modem receivers, the reach (length of cable) of thesignal is often limited by the level of the front-end noise. TheOPA686's low noise allows the reach to be extended withoutcompromising signal quality. Longer reach provides greater signaldistribution over large areas, such as high-rise apartment complexesand office buildings. According to In-Stat, a market research andinformation company from Scottsdale, Ariz., the cable modem marketwill swell from 171,000 units in 1997 to more than 10 million by 2001,resulting in a jump from revenues of $79 million in 1997 to $2.1 billion in 2001.
OPA686 features 250-MHz bandwidth at a gain of 10, 1.3 nV/sqrt(Hz)input voltage noise, -95 dBc distortion at 5 MHz, 600 V/micro-secondsslew rate, stable for gains >=7, high DC accuracy, and +120mA/-90mAoutput current.
OPA686 is priced from $2.89 in 1,000s and packaged in tiny SOT23-5and 8-pin SO-8 packages. Delivery for the SO-8 is from stock. TheSOT23-5 will be available in April, 1998.
Return to Headlines