Micro Electronics

71. What is the highest undistorted frequency out of an op-amp for a given slew rate and peak voltage?

1. Power bandwidth
2. Cut-off frequency
3. Critical frequency
4. 3-dB bandwidth

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72. What is the letter prefix used by the Fairchild Semiconductor on their op-amp product?

1. μA
2. FS
3. SG
4. NE

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73. What is the most common method used for growth of single crystals for IC fabrication?

1. Epitaxial growth
2. Czochralsky pulling technique
3. Film deposition
4. Photolithography

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74. What is the most commonly used type of linear IC?

1. 741
2. 555 timer
3. Operational amplifier
4. LM 340

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75. What is the most popular IC used in timing circuits?

1. 555 timer
2. 741
3. LM 317
4. LM 340

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76. What is the package suffix code for a plastic dual-in-line for surface mounting on PC board?

1. D
2. J
3. N
4. P

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77. What is the principal method used in the fabrication of semiconductor devices for hybrid and monolithic ICs?

1. Epitaxial growth
2. Photolithographic process
3. Isolation diffusion
4. Planar technology

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78. What is the purpose of a comparator in op-amps?

1. To detect the occurrence of a changing input voltage
2. To maintain a constant output when the dc input voltage changes
3. To produce change in output when an input voltage equals a reference voltage
4. To amplify an input voltage

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79. What is the slew rate of a 741 operational amplifier?

1. 0.5 V/μs
2. 1 Viμs
3. 0.5 Vims
4. 1 Vims

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80. What is the specific application of μA741C op-amp

1. For commercial
2. For industrial
3. For military
4. For experimental

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