AOL(f) = A/[1+ j(f/fo1)]x[1+ j(f/fo2)] =140000/[1+ j(f/6)]x[1+ j(f/2.34)]. 10. What is the voltage transfer function of op-amp in s-domain.
A. S×A/(s+ωo)
B. A/(s+ωo)
C. (A×ωo)/(s+ωo)
D. None of the mentioned
Answer:A
AOL(f) = A/[1+ j(f/fo1)]x[1+ j(f/fo2)] =140000/[1+ j(f/6)]x[1+ j(f/2.34)]. 10. What is the voltage transfer function of op-amp in s-domain.
A. S×A/(s+ωo) B. A/(s+ωo) C. (A×ωo)/(s+ωo) D. None of the mentioned
Explanation: For the voltage transfer function in s-domain is expressed as AOL(f) = A/[1+ j(f/fo)] =A/[1+j(ω/ωo)]= A×ωo/(jω/jωo) = A×ωo / (s+ωo). 11. Calculate the unity gain bandwidth of an op-amp. Given, A≅ 0.2×106 & fo =5Hz?