I was called in for an interview and went through several different 45-60 minute interviews ranging from technical to experiential. It was great but very intensive. They had me go through HR and I answered very basic HR questions and was explained the benefits package.

Then I had 6 interviews with different team members in order to assess my capabilities. Overall the interview lasted about 6 hours.

A couple interviewers asked me about different op amp circuits they drew and how to explain different voltages, currents, and characteristics.