Analog & digital Electronics

 

1.       Explain full subtractor and construct full subtractor using half subtractors.

2.       Explain T Flipflop with Excitation Table. Implement T flip flop using SR flip flop.

3.       Differentiate the Asynchronous counter and Synchronous counter. Explain 3- bit up/down Asynchronous counter in detail.

4.       Explain working of master-slave JK flip-flop with necessary logic diagram, state equation and state diagram.

5.       How to generate 8x1 MUX using 4x1 MUX.

6.       Derive and draw logic circuit for BCD to Excess-3 Code converter.

7.       Draw logic circuit for 2-Bit Magnitude Comparator

8.       Implement the following Boolean functions with a multiplexer and Decoder. F(w, x, y, z) = Σ (2, 3, 5, 6, 11, 14, 15)

9.       Explain Serial Transfer w.r.t Shift Register with suitable example.

10.   Simplify the following Boolean function by means of the Tabulation Method. F(A,B,C,D) = ∑(1,2,3,5,6,7,8,9,12,13,15)

11.   Reduce the expression in SOP and POS form using K-map. F(A,B,C,D) = ∑m (1,5,6,12,13,14) + d(2,4)

12.   With necessary sketch explain Bidirectional Shift Register with parallel load.

13.   Implement the given function using 8 X 1 Multiplexer F (A,B,C,D) = ∑m (0,1,2,3,5,8,9,11,14)

14.   Minimize following Boolean function using K-map & design the simplified function using logic gates. F = ∑ m(1, 2, 4, 6, 7, 11, 15) + ∑ d(0, 3)

15.   Design 3-bit parity generator circuit using even parity bit.

16.   Design a 4 bit synchronous up counter.

17.   Explain R-2R ladder type DAC

18.   Explain successive approximation type ADC.

19.   List types of A/D convertors.

20.   Enlist the types of D to A converter & explain any one in detail.

21.   Explain construction and principle of operation of JFET along with its drain and trans-conductance characteristics?

22.   Explain construction and principle of operation of D-MOSFET along with its drain and transconductance characteristics?

23.   Write the differences between JFETs and MOSFETs.

24.   Draw the cross-sectional view of an N channel JFET and explain its principle of operation, Draw the Ig vs Vds graph for different values of Vgs and highlight the different regions of operation.

25.   What is differences b/w ideal and practical op-amp amplifier?

26.   With a neat diagram explain op-amp Schmitt Trigger circuit?

27.   Explain the CMRR, Slew rate, PSRR and gain-bandwidth performance parameter of a practical opamp?

28.   Define slew rate of Op–Amp. (ii) Determine the cutoff frequency of OP–amp whose unity gain bandwidth is 1 MHz and open loop gain is 2 x 105 . (iii) List the expression for the output of non– inverting amplifier and inverting op-amp amplifier

29.   Distinguish between bistable,monostable and astablemultivibrators.

30.   Draw the circuit diagram of a voltage follower. What are its closed loop voltage gain and bandwidth?

31.   Draw the basic circuit of three op-amp instrumentation amplifier and explain its operation?

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