Question

We use BJT in BiCMOS because of its _____________

(a) High speed

(b) High gain

(c) Low output resistance

(d) All of the Mentioned

I had been asked this question in a job interview.

Question is from BiCMOS Logic Circuits topic in section Logic Families of Digital Circuits

Answer 1

Right option is (d) All of the Mentioned

To elaborate: Bipolar junction transistors offer high speed, high gain and low output resistance, which are excellent properties for high-frequency analog amplifiers. It also offers high switching speed and improved noise performance.