Discussion
In terms of increasing speeds the ADCs can be listed as :
Answer: B
In order of increasing speed: dual slope, successive approximation, flash.
A dual slope ADC integrates the input for a fixed time and then de-integrates against a reference, taking milliseconds per conversion; it is slow but accurate and rejects noise, which is why it is used in digital multimeters. A successive approximation ADC finds one bit per clock cycle, so an n-bit conversion takes about n clock cycles, typically microseconds. A flash ADC compares the input with all levels at once using 2n − 1 comparators, converting in a single step of nanoseconds.
Every other order puts one of these out of place, for example listing flash as the slowest.
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