Discussion
Why is a wideband amplifier often built from many low-gain stages?
Answer: C
Because gain and bandwidth trade at a roughly constant product, a stage taking little gain is wide, and several of them in series give a large total gain with a bandwidth that shrinks only modestly. Roll-offs compound rather than cancelling, low-gain stages still have Miller capacitance though multiplied less, and the capacitor count rises rather than falling. Distributing a requirement across several stages, each operating where it is efficient, beats demanding everything of one.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development