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Online tool speeds amp selection

Norwood, Mass. — Analog Devices Inc.'s amplifier parametric evaluation tool is said to create a virtual evaluation board environment to remove the guesswork from selecting and implementing operational amplifiers.

By using parametric data to mathematically model the general behavior of a selected amplifier, designers are able to select a component, quickly configure a circuit, apply a signal and evaluate the amplifier's general performance, said Dave Kress, director of applications engineering at Analog Devices.

“For years, designers have been forced to rely on tedious hand calculations and guesswork in the selection and evaluation of op amps,” Kress said. “With ADI's online parametric evaluation tool, our customers can now quickly and efficiently conduct real-time simulations and troubleshoot potential problems across various parameters and architectures.”

The parametric evaluation tool enables designers to check an amplifier's parametric performance, such as bandwidth limitations, input/output range, gain errors, and DC errors in a given circuit configuration. By observing the limits specified by these parameters, the designer is ensured that the device is safely and reliably operating well within its optimal performance range.

The evaluation tool also offers several key features that aid in the selection of amplifiers from ADI, according to Kress. For instance, once a circuit has been set, a designer can request a list of the amplifiers that would best fit a given design. The customer can then evaluate each component separately to determine which device best suits their design. Separately, interactive message flags issue a series of warnings if a circuit configuration may lead to damage of an amplifier, if the circuit yields degraded performance or if there is an issue the designer should simply be made aware of. In addition, a selection Wizard is offered for less experienced designers who may require additional help choosing an amplifier.

The ADI op amp evaluation tool is powered by National Instruments LabVIEW , which provides a familiar graphical user interface (GUI) and processes related computational tasks.

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The tool, available to users at no charge, is accessible in real-time on the Analog Devices site and requires no software download.Click here to access the tool.

Analog Devices , 1-800-262-5643, www.Analog.com.

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