26. Refer to the given figure. The op-amp has a unity-gain bandwidth of 3 MHz. Determine the BW of the circuit.
27. A practical op-amp has very ________ input impedance, very ________ output impedance, very ________ open-loop voltage gain, and a ________ bandwidth.
28. What is the level of the roll-off in most op-amps?
29. Calculate the output impedance of an inverting op-amp using the 741 op-amp (ro = 75 , AOL = 200 V/mV) if R1 = 100 and Rf = 1 k.
30. The input offset voltage drift is a parameter directly related to VOS and ________.
31. What is the difference voltage if the inputs are an ideal opposite signal?
32. Refer to the given figure. Determine the bandwidth.
33. Refer to the given figure. The midrange voltage gain of this amplifier is
34. Which of the following circuit conditions affect(s) the output offset voltage of an op-amp?
35. A(n) ________ amplifier configuration has a higher input impedance and a lower output impedance than the op-amp itself.
36. In which of the following operations is the resulting output signal of the differential amplifier near zero?
37. What is the voltage gain of the unity follower?
38. Negative feedback added to an op-amp ________ the bandwidth and ________ the gain.
39. It takes an op-amp 22 s to change its output from –15 V to +15 V. Determine the slew rate.
40. Refer to the given figure. The op-amp has a unity-gain bandwidth of 1.7 MHz. Find the bandwidth of the circuit.
41. An RC network has R = 500 k and C = 10 pF. Find the value of fc.
42. What is the scale multiplier (factor) of a basic integrator?
43. Calculate the overall voltage gain of the circuit if R1 = 100 and Rf = 1 k.
44. Which of the following circuits is referred to as a BiMOS circuit?
45. Refer to the given figure. A dc voltage of –1.2 V is applied. VCC = ±12 V. What is the output voltage?
46. In the differential amplifier circuit, which of the following terminals are connected together?
47. What is the cutoff frequency of an op-amp if the unity-gain frequency is 1.5 MHz and the open-loop gain is 100,000?
48. The ________ is the voltage gain of an op-amp with external feedback.
49. Refer to the given figure. The voltage gain of this amplifier is
50. A(n) ________ amplifier configuration has an input impedance approximately equal to the input resistor Ri and an output impedance approximately equal to the output impedance of the op-amp itself.