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ECE :: Analog Electronics

Analog Electronics - Section 1
Analog Electronics - Section 2
Analog Electronics - Section 3
Analog Electronics - Section 4
Analog Electronics - Section 5
Analog Electronics - Section 6
Analog Electronics - Section 7
Analog Electronics - Section 8
Analog Electronics - Section 9
Analog Electronics - section-1
Analog Electronics - Section 10
Analog Electronics - Section 11
Analog Electronics - Section 12
Analog Electronics - Section 13
Analog Electronics - Section 14
Analog Electronics - Section 15
Analog Electronics - Section 16
Analog Electronics - Section 17
Analog Electronics - Section 18
Analog Electronics - Section 19
Analog Electronics - Section 20
Analog Electronics - Section 21
Analog Electronics - section-22
Analog Electronics - Section-23
  1. In a transistor switch, the voltage change from base-to-emitter which is adequate to accomplish the switching is only about
    2. A.
    0.2V
    B.
    0.4V
    C.
    0.1V
    D.
    0.5V

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  2. Which of the following is the conversion time of a dual-slope ADC
    3. A.
    5 to 10 ns
    B.
    10 to 100 ns
    C.
    100 to 200 ns
    D.
    2 to 3 ns

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  3. If a certain multiplexer can switch one of 32 data inputs to its output. How many different inputs does this MUX have?
    4. A.
    30 data inputs & 5 select inputs
    B.
    32 data inputs and 5 select inputs
    C.
    32 data inputs and 4 select inputs
    D.
    None of the above

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  4. Which of the following is the value of unity gain bandwidth of 741 OPAMP
    5. A.
    4 MHz
    B.
    2 MHz
    C.
    6 MHz
    D.
    1 MHz

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  5. __________ is known as fastest switching logic family
    6. A.
    CMOS
    B.
    TTL
    C.
    DTL
    D.
    ECL

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  6. The voltage between the emitter and collector of a silicon transistor when the transistor is biased to be at the edge of saturation is
    7. A.
    5 volts
    B.
    10 Volts
    C.
    0.1 Volts
    D.
    0.3 Volts

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  7. Schottky TTL gates have propagation delay time of the order of
    8. A.
    6ns
    B.
    5ns
    C.
    2ns

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  8. How many comparators does a 12-bit flash ADC require
    9. A.
    4000
    B.
    3095
    C.
    4095
    D.
    2512

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  9. Open-loop voltage gain of 741 OPAMP is ________
    10. A.
    40 dB
    B.
    200 dB
    C.
    100 dB
    D.
    70 dB

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  10. In Worst case ECL noise margins are approximately
    11. A.
    100 mV
    B.
    50 mV
    C.
    250 mV
    D.
    400 mV

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