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Why are my CMOS logic circuits so hot?

Posted: 24 Apr 2013     Print Version  Bookmark and Share

Keywords:CMOS  BiCMOS  logic gates 

Some may think that digital circuits, especially using CMOS and BiCMOS, are simple to design. However, like most things in life, professionals who have many years of experience make the jobs look easy! The circus performer effortlessly juggles many items. The concrete finisher creates a smooth surface, and a top chef creates a gourmet meal in a snap. Now back to circuit design. Isn't digital design just stringing together some logic gates?

What can be simpler than designing with CMOS and BiCMOS? These technologies are very easy to use but they still require careful design. This tutorial discusses the odd case of circuits that seem to work but exhibit some peculiar behaviours— including burning the designer's fingers!

View the PDF document for more information.

Originally published by Maxim Integrated Products Inc. at as "It's Hot! Why Are My CMOS Logic Circuits Burning Up?".

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