UNIT-V

1.      Explain the difference between Analog to Digital converter and Digital to Analog converters through underlying equations.

2.      Illustrate one application each of Analog to Digital and Digital to Analog converters.

3.      Discuss about successive approximation converter with necessary diagrams.

4.      Explain about ladder type DAC with neat diagram.

5.      Compare R-2R and weighted resistor types of DACs.

6.      Write short notes on A/D converters.

7.      Define the following terms as related to DAC:

i.                    Linearity

ii.                  Resolution.

8.      List the specifications of DAC & draw the pin configuration of 1408 DAC

9.      Write a note on multiplying DACs.

10.  Explain the operation of parallel comparator type ADC with the help of a neat diagram.

11.  The LSB of a 6-bit D/A converter represents 0.1V. What voltage value will be represented by the following binary words?

i.                    101010

ii.                  110110

12.  A 12-bit D to A converter has a full-scale range of 15 volts. Its maximum differential linearity error is +/-1/2 LSB.

i. What is the percentage resolution?

ii. What are the minimum and maximum possible values of the increment in its output voltage?

UNIT-VI

1.      Design a CMOS transistor circuit with the functional behavior

2.      Distinguish between static and dynamic power dissipation of a CMOS circuit? Derive the expression for dynamic power dissipation?

3.      Explain about TTL NAND gate with necessary diagrams.

4.      Write about applications of TTL gate.

5.      Design a CMOS transistor circuit that has the functional behavior f (Z)=A.(B+C)

6.      Design a 4-input CMOS AND-OR-INVERT gate. Draw the logic diagram and function table.

7.      Why are tristated outputs and open collector outputs used in ICs? List the advantages for both types of out puts.

8.      Define the terms with respect to logic families: fan out, power dissipation, propagation  delay, noise margin, Fan in and Fan out

9.      Distinguish between open collector output and totem pole output.

10.  List the differences between various logic family ICs under TTL family like series, 74F series, 74ALS series & 74AS series ICs.