In this document, Jan Petrik derives a Spice model for Op-Amp stability based on real-live bench measurements.

The document starts with the basics of operational amplifier stability and deals with the measurement of open-loop gain, open-loop output impedance, input impedance etc. The measurements are all explained in detail and common pitfalls are described.

Check out the application note below to learn more about stability of operational amplifier circuits and how to model them in Spice based on your own bench-measurements.

Application note: Op-Amp Stability Spice Model

(2 MB)

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Jan Petrik is a hardware engineer with more than 9 years of experience in hardware design. He graduated with honors from Czech Technical University in Prague in 2013. Since then, Jan has gained his experience working mostly in medical and aerospace industries. He is passionate about analog electronics, power integrity, EMC and circuit simulations. Jan enjoys figuring out complexities of quality hardware design, that stand the tests of EMC chamber, mass production and time. Since 2021, he has been freelancing, offering design and consultancy services. When not in his laboratory, Jan enjoys spending time with his family and climbing. He enjoys learning new stuff, sharing accumulated knowledge and quality discussion.

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