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What is important to one engineer may be a “who cares” to another. If you need a particular vendor’s IC models, you may be limited to using the vendor’s version of SPICE. Note that if you need or use component models, there may be compatibility problems with your existing models with some versions of SPICE. Your particular choice may be due to past experience, ease of use, or particular features. While there are a slew of tools with advanced features which you have to pay for, luckily, there are also a variety of free versions of SPICE. It is an essential tool for every electrical engineer. If you can draw the circuit, a SPICE simulator can calculate the voltages and currents in the time or frequency domain on any node. Īn accountant has a calculator, and a hardware engineer has SPICE. If you have a favorite low-cost tool not mentioned here, add it to the comments section. Here are our suggestions for low-cost but useful tools for home engineering projects. They will never replace the professional level tools like Keysight’s ADS or Mentor’s Expedition, or Altium Designer, but they may be perfect if you want to design and build your first hobby board. Want to explore circuit simulation, or build your own circuit boards, but don’t want to commit major funds or spousal permission units (SPUs)? Now might be the ideal time to take these free tools for a test drive.

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We are not advocating you replace your $100k, 20 GHz bandwidth scope with one of our recommended 35 MHz bandwidth scopes, but if you want a simple, easy to use, yet full featured scope, with limited bandwidth, it’s hard to beat the $100 to $400 price point of some of these low-cost multi-function scopes listed below. 224 Gb/s Per Lane: Options and Challenges

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