Deemed University 2009 A.M.I.E.T.E Electronics

AMIETE – ET (OLD SCHEME)

Code: AE09 Subject: ANALOG & DIGITAL ELECTRONICS
Time: three Hours Max. Marks: 100

NOTE: There are nine ques. in all.
· ques. one is compulsory and carries 20 marks. ans to Q. 1. must be written in the space given for it in the ans book supplied and nowhere else.
· Out of the remaining 8 ques. ans any 5 ques.. every ques. carries 16 marks.
· Any needed data not explicitly given, may be suitably presumed and said.


Q.1 select the accurate or the best option in the following: (2 10)

a. CMRR is described as

(A) . (B) .
(C) . (D) .

b. An Op-amp has

(A) High input impedance and high output impedance.
(B) High input impedance and low output impedance.
(C) Low input impedance and high output impedance.
(D) Low input impedance and low output impedance.

c. The magnitude function of an Nth order Butterworth filter with a passband edge is provided by

(A) . (B) .
(C) . (D) .

d. The Q-factor for parallel LCR resonator is

(A) . (B) .
(C) . (D) .


e. In Schottky barrier diode, junction is formed by

(A) metal-extrinsic semiconductor.
(B) metal-intrinsic semiconductor.
(C) 2 dissimilar metals.
(D) Extrinsic and intrinsic semiconductor.

f. A CMOS logic gate consist of

(A) NMOS and PMOS transistors.
(B) 2 NMOS or 2 PMOS transistors.
(C) n-p-n and p-n-p transistors.
(D) 2 n-p-n or p-n-p transistors.

g. _________ used for impedance matching.

(A) Inverting amplifier
(B) Non-inverting amplifier
(C) Voltage follower
(D) Logarithmic amplifier

h. Major limitation of FET over BJT is

(A) Higher input impedance.
(B) Lower gain-bandwidth product.

Earning:   Approval pending.