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GATE EC 2021: Digital Circuits Quiz 9
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Question 1
Find fan-out for a gate IOL(Max) = 18mA; IIL(Max) = 0.0018A.
Question 2
The current specification of gates are IOL = 8 nA, IOH = –400 μA, IIL = – 0.36 μA and IIH = 20 μA . Its fan out is ________.
Question 3
For transmission gate logic shown below find the logic realized with it
Question 4
The I/P – O/P voltage for the standard TTL family are given by
= 2.6 V
= 0.6V
= 2V and
= 0.4 V. The maximum- amplitude noise that can be tolerated when a low O/P is driving an input is
![](https://gradeup-question-images.grdp.co/liveData/PROJ5397/1507358003213262.png)
![](https://gradeup-question-images.grdp.co/liveData/PROJ5397/1507358003943821.png)
![](https://gradeup-question-images.grdp.co/liveData/PROJ5397/15073580046899.png)
![](https://gradeup-question-images.grdp.co/liveData/PROJ5397/1507358005411725.png)
Question 5
Consider a CMOS operating in 2MHz clock and having a load capacitance of 10pF and operating with
dissipating a power ‘P’. Find the frequency of operation with
, which dissipates the same power
![](https://gradeup-question-images.grdp.co/liveData/PROJ16196/1530269655153338.png)
![](https://gradeup-question-images.grdp.co/liveData/PROJ16196/1530269655882399.png)
Question 6
Consider the CMOS logic circuit shown in the figure :
The logic implemented by this circuit is (the input is either O or – VDD).
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Jun 8ESE & GATE EC