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Technology Stocks : ADI: The SHARCs are circling! -- Ignore unavailable to you. Want to Upgrade?

To: Jim Oravetz who wrote (2750)	6/26/2001 8:26:15 AM
From: Jim Oravetz	Read Replies (1) \| Respond to of 2882

Analog Devices Introduces Industry's Fastest 16-Bit SAR Converter Offering Unparalleled Speed And Precision Record speed of one million samples per second is twice the rate available today Product of the Week chipcenter.com The need for signal processing is bursting at the seams because of the need to convert the real world analog to digital and all the crunching it takes. Analog Devices has focused on the $1 billion ADC market and zeroed in on the successive approximation register (SAR) architecture because it is the sweet spot in ADC market - with about 50% of the sales. Why so popular? Simple, SARs have no latency, can be multiplexed, offer accuracy, and speed not provided in combination by the sigma delta, pipeline or flash type ADCs. The SAR architecture is a good match for the data acquisition and optical fiber applications. These are the apps that have a control loop that require some form of adjustment during operation. For example, with optical fibers you may need to switch the light from one fiber to another or move a mirror to tune the laser for pumping in more light to amplify a signal. For these control loops you cannot have latencies so you need a SAR converter because they are very accurate (16-bits) and they have to be as fast as possible. The Analog Device 1 MSPS AD7671 is appropriate for these applications and can also be multiplexed so that it can replace of two 500 kSPS converters. This means that it takes up less space, and uses less power - 150 mw . More established applications like process control and the medical world - they want to shrink board space because they may need to add more sensors, but in the same box size. Other applications for the AD7671 include: wired communications (MEMS switches, optical MUX), Test and Measurement, instrumentation, scanners, Electromagnetic prospecting, space cameras, atomic microscopes, and blood analyzers. For data acquisition applications, the faster you can acquire information the better the product. Some examples would be data acquisition cards, network analyzers, or data loggers. With its compact, 9x9 mm 48-lead LQFP (low-profile quad flat pack) package, the AD7671 saves board space, is pin compatible with the ADI PulSAR family of 16-bit SAR converters, and is specified to operate from -40 to +85 degrees Celsius. You can find a data sheet for the AD7671 at: www.analog.com/pdf/preview/AD7671_prc.gif The AD7671 Pulsar ADC is priced at $25 in 10,000-piece quantities. Evaluation boards and production quantities are now available. The AD7671 Pulsar converter doubles performance for a variety of high-precision applications, including medical instrumentation, spectrum analyzers, data acquisition systems, scanners, wired communications, and fiber optic networking equipment.