Explanation: Flash type ADC has the advantage of high speed as the conversion takes place simultaneously rather than sequentially. Typical conversion time is 100nanosecond or less. 7. The number of comparator required for flash type A/D converter
A. Triples for each added bit
B. Reduce by half for each added bit
C. Double for each added bit
D. Doubles exponentially for each added bit
Answer:A
Explanation: Flash type ADC has the advantage of high speed as the conversion takes place simultaneously rather than sequentially. Typical conversion time is 100nanosecond or less. 7. The number of comparator required for flash type A/D converter
A. Triples for each added bit B. Reduce by half for each added bit C. Double for each added bit D. Doubles exponentially for each added bit
Explanation: The number of comparator required almost doubles for each added bit. For example – 2 -bit ADC requires three comparators, 3 -bit ADC needs seven comparators and a 4 -bit ADC requires fifteen comparators. 8. Drawback of counter type A/D converter