Home / ECE / Analog Electronics :: Section-23

ECE :: Analog Electronics

  1. Which of the following value is the approximate storage time of Schottky diodes
  2. A.
    Zero sec
    B.
    20 sec
    C.
    30 ns
    D.
    32ms

  3. For a counter-type ADC, if the conversion time is around 4.1 ms then the minimum number of conversions that could be carried out each second would be approximately
  4. A.
    150 per second
    B.
    244 per second
    C.
    209 per second

  5. In a first-order high-pass active filter, if the resistance and the capacitance used are 2.1 Kand 0.05µF respectively, then the cut-off frequency of the filter is _________
  6. A.
    15KHz
    B.
    1.5KHz
    C.
    3.5KHz
    D.
    0.95KHz

  7. __________ is the cut-in voltage of the aluminium n-type Schottky diode
  8. A.
    0.5V
    B.
    0.5 µV
    C.
    0.35V
    D.
    0.35mV

  9. _________is the Typical propagation delay of an ECL circuit
  10. A.
    10ns
    B.
    5ns
    C.
    1ns
    D.
    3.2ns

  11. A clock rate of one megahertz operating a 12-stage counter of a counter-type ADC would need a maximum conversion time of approximately
  12. A.
    3.2ms
    B.
    4.1ms
    C.
    8ms
    D.
    7.1ms

  13. In a first-order low-pass active filter, if the values of the resistance and the capacitor used are 1.2 Kand 0.02µF respectively, then the cut-off frequency of the filter is
  14. A.
    3.6KHz
    B.
    8.7KHz
    C.
    8.2Hz
    D.
    6.63KHz

  15. Large signal differential voltage amplification of the 741 OPAMP is ___________
  16. A.
    100 V/mv
    B.
    500 V/mv
    C.
    1000 V/mv
    D.
    200 V/mv

  17. The below circuit represent a _________

  18. A.
    Low pass filter
    B.
    High pass filter
    C.
    Band pass filter
    D.
    None of the above

  19. For which of the following reason Active load is used in the collector of the difference amplifier of an Op-amp:
  20. A.
    To increase the output resistance
    B.
    To increase the differential gain
    C.
    To handle large signals
    D.
    To provide symmetry