Extra exam question E6C04
Subelement E6, CIRCUIT COMPONENTS· Group E6C
Which of the following is an advantage of BiCMOS logic?
- A.Its simplicity results in much less expensive devices than standard CMOS
- B.It is immune to electrostatic damage
- C.It has the high input impedance of CMOS and the low output impedance of bipolar transistors (correct answer)
- D.All these choices are correct
WhyBiCMOS logic combines the high input impedance of CMOS with the low output impedance of bipolar transistors. BiCMOS logic combines both bipolar and CMOS transistor structures on the same chip, giving it the high input impedance CMOS is known for along with the low output impedance (strong drive capability) bipolar transistors provide, a genuine best-of-both-worlds combination, answer C. BiCMOS isn't simpler or cheaper than standard CMOS, it's more complex to fabricate, and it isn't inherently immune to electrostatic damage, so "all these choices" overstates its advantages.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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