Mixed Signal Interview Questions

278 mixed signal interview questions shared by candidates

Recruiter questions: 1. Why this job? 2. What happens to performance of invertor when body is tied to -ve voltage? 3. How will propagation delay of invertor scaled with sizes of PMOS and NMOS? Director phone screen: 1. MOSFET capacitance variation with gate voltage, list three regions this C. 2. I-V characteristic of NMOS whose drain is tied to Vdd, Source/Body to Gnd and Gate.voltage is sweep from 0 to Vdd. Mention different regions of this curve. 3. How will NMOS drain current scale with temperature variation? 4.Consider a blackbox circuit that sources current 'I'. What tests will you perform on it?
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Mixed Signal Circuit Design Engineer

Interviewed at Micron Technology

3.9
Oct 24, 2019

Recruiter questions: 1. Why this job? 2. What happens to performance of invertor when body is tied to -ve voltage? 3. How will propagation delay of invertor scaled with sizes of PMOS and NMOS? Director phone screen: 1. MOSFET capacitance variation with gate voltage, list three regions this C. 2. I-V characteristic of NMOS whose drain is tied to Vdd, Source/Body to Gnd and Gate.voltage is sweep from 0 to Vdd. Mention different regions of this curve. 3. How will NMOS drain current scale with temperature variation? 4.Consider a blackbox circuit that sources current 'I'. What tests will you perform on it?

Cross section of conventional MOS transistor with parasitics. Vertical power MOS. Folded cascode, transfer function, indicate what nodes bring the poles of the circuit. Fundamentals of noise and matching. Draw a buck-converter with P.I. feedback.
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Mixed Signal Design Engineer

Interviewed at Infineon Technologies

4.1
Jan 22, 2017

Cross section of conventional MOS transistor with parasitics. Vertical power MOS. Folded cascode, transfer function, indicate what nodes bring the poles of the circuit. Fundamentals of noise and matching. Draw a buck-converter with P.I. feedback.

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