Web-based operational amplifier simulator tool saves time

Milpitas, Calif. — Based on input and output specs provided by the user, Intersil Corp. claims this free, interactive, iSim Web-based simulator tool will find the right Intersil operational amplifier for a given application.

In many cases, simulation is also available for immediate feedback on circuit performance, the company said.

The iSim simulator tool has an applications-based Intersil analog signal processing solution selector with dynamic input fields to match a designer's input and output requirements. Options include inverting and non-inverting gain, transimpedance, differential, and low and high pass filter configurations. All applicable Intersil devices are listed, with many of them available for simulation. When available for simulation, a reference schematic is generated for simulation, based on the designer's specifications.

Intersil's iSim for operational amplifiers allows users to verify their design's stability without bread boarding, said Jack Clark, director of Intersil's Central Applications group. Also, there is no need to purchase costly simulators, he said.

<> for op amps is a two-part tool. First, it contains a dynamic solution selector to sort Intersil's portfolio based on the specifications of the application rather than the specifications of the devices themselves. This saves the user a step in determining which Intersil product would best suit the end application, Clark said. This search function is independent of the simulation side of the tool. Once application specifications are loaded, the sorted devices are displayed with icons indicating which are available for simulation.

The second part of iSim for operational amplifiers is the simulator itself. The simulations run on the SIMetrix/SIMPLIS platform, which is based on Spice. The simulator builds a circuit using the application specifications loaded into the selector, as well as the basic Spice model for the following analyses: ac analysis (bode plot), transient pulse and transient sine. In addition, the circuit can be downloaded to iSim : personal edition (PE) for offline editing and ac analysis.

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Using Intersil's iSim online design tool for operational amplifiers significantly increases the likelihood of first-pass success of new op amp designs without the need of a soldering iron, Clark said. Starting with Intersil's customized op amp models and products, users can modify their design, and then do an online simulation to test the stability of the design by using such tools as ac analysis, transient pulse and transient sine simulations, he said. Intersil's iSim for operational amplifiers tool is free to registered users. Click here to register .

Intersil , 1-888-468-3374,

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