Explanation: The gain equation for op-amp is AOL(f) = A/[1+ j(f/fo1)]x[1+ j(f/fo2)]x[1+ j(f/fo3)]. 7. Find out the frequencies that are avoided in frequency response plot?
A. None of the mentioned
B. Single break frequency
C. Upper break frequency
D. Lower break frequency
Answer:A
Explanation: The gain equation for op-amp is AOL(f) = A/[1+ j(f/fo1)]x[1+ j(f/fo2)]x[1+ j(f/fo3)]. 7. Find out the frequencies that are avoided in frequency response plot?
A. None of the mentioned B. Single break frequency C. Upper break frequency D. Lower break frequency
Explanation: Op-amps have more than one break frequency because only a few capacitors are present. Often upper break frequencies are well above the unity gain bandwidth. So, they are avoided in frequency response plot. 8. In a phase response curve of MC1556, the phase shift is -162.5o about 4MHz. If the approximate value of first break frequency is 5.5Hz. Determine the approximate value of the second break frequency?