Micro Electronics

51. The reason why integrated circuits are divided into digital linear categories is because

1. They either process analog or digital signals
2. They are either used as input of output components
3. Up to the present these are the only two known categories
4. They are simply circuits that happen to be constructed integrally and like all circuits are either switching type or amplifying type

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52. The summing amplifier has two or more inputs, and its output voltage is proportional to the __________ of the algebraic sum of its input voltages.

1. Positive
2. Negative
3. Reciprocal
4. Inverse

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53. The term monolithic is derived tom a combination of the Greek words monos and lithos which means

1. Single-element
2. Single-water
3. Single-stone
4. Single-chip

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54. The three most common package suffix codes are the following except one

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

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55. The typical dimension of a BJT in a single IC chip is

1. 4 mils x 6.5 mils
2. 2 mils x 12 mils
3. 3 mils x 4.5 mils
4. 1.5 mils x 3 mils

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56. The typical dimension of a diode in a single IC chip is

1. 4 mils x 6.5 mils
2. 2 mils x 12 mils
3. 3 mils x 4.5 mils
4. 1.5 mils x 3 mils

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57. The typical dimension of a MOSFET in a single IC ship is

1. 4 mils x 6.5 mils
2. 2 mils x 12 mils
3. 3 mils x 4.5 mils
4. 1.5 mils x 3 mils

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58. The unity gain frequency of an op-amp

1. Is the frequency where the voltage gain of an op-amp is 1
2. Indicates the highest usable frequency
3. It equals the gain bandwidth product
4. All of the above

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59. The unwanted capacitance between connecting wires and ground.

1. Summer capacitor
2. Stray wiring capacitance
3. Biasing capacitance
4. Feedback capacitance

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60. The value of the input voltage that switches the output of a comparator or Schmitt trigger

1. Trip point
2. Firing voltage
3. Threshold voltage
4. All of the choices

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