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ADI op amps target communications apps

Posted: 23 Jul 2004 ?? ?Print Version ?Bookmark and Share

Keywords:analog devices? adi? operational amplifier? ad8615? ad8616?

Analog Devices Inc. announced that its latest family of operational amplifiers deliver the optimal combination of low noise and low power at the higher speeds required by communications applications, and the higher output drive capability necessary for audio applications.

The AD8615/16/18 family of single, dual and quad operational amplifiers with rail-to-rail inputs and outputs are the latest products to use ADI's patented DigiTrim digital trimming technique, which eliminates the need for accuracy adjustments. Featuring 24MHz bandwidth and 0.002 percent total harmonic distortion (THD), the new family is twice as fast and has 60 percent lower THD than the previous generation. According to the company, audio applications benefit from the family's higher output drive, which increases current capacity by up to 50 percent to drive heavy loads in portable equipment such as cell phone headsets.

"This new generation of operational amplifiers enables us to extend our product portfolio to meet the growing demand for higher accuracy amplifiers in communications and audio applications that benefit from higher speed and output drive capability," shared Steve Sockolov, product line director for precision amplifiers at ADI. "By offering a complete range of precision amplifiers that are optimized to deliver maximum performance and value, we are meeting the design specifications of a wide variety of high-volume, cost-sensitive applications, from bar code scanners to GSM phones."

Reduced offset voltage, errors

Fully-specified to operate over the extended industrial temperature range and from single 2.7V to 5V supplies, the new amplifiers feature reduced offset voltage and offset related errors, low input voltage noise, and low input current noise. The combination of 24MHz bandwidth, 65?V max offset voltage, 8nV/sqrt-Hz noise and 1pA (max) input bias current make the devices suitable for a wide variety of applications, including filters, integrators, photodiode amplifiers, high impedance sensors used in optical communications, GPS receivers, data acquisition, industrial controls and medical instrumentation. The AD8616 and AD8618 also offer a 150mA output drive capability.

Housed in 5-lead TSOT packaging, the AD8615 is already sampling with production quantities available in September 2004. The AD8616 and AD8618 are already fully released and are available in 8-lead MSOP and narrow SOIC packaging, and 14-lead narrow SOIC and TSSOP packaging. For 1,000-unit orders, pricing for the AD8615, AD8616 and AD8618 starts at 75 cents, $1.15 and $2.05, respectively.





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