HR contacted me via Linkedin and scheduled F2F interview the very next day. Didn't get much time to prepare. There were 3 persons who interviewed me, first 2 were purely technical, began with knowing my work experience (I came from power electronics background), my circuit of choice. They both asked a few design questions on my circuit, and then took the course of interview from my experience to their expectation. 3rd person was mostly behavioral interview, asked me about my role in the previous company and expectation and profile of the job for which I was interviewing.

3 rounds. The first was behavioral with very simple technical questions -- what's the offset voltage of an ideal op am, setup & hold time, etc. Second was mostly behavioral Third was behavioral with focus on my resume.