ONAL CONT
600
CHENNAMA
AM
LER Roll No. 2 o22|
025 OF
DEPARTMENTS)
ANNA UNIVERSITY(UNIVERSITY
SWOILVNIN
APRIL / MAY 2024
-END SEMESTER EXAMINATIONS,
B.E. (FullTime)
AND COMMUNICATION ENGINEERING
DEPARTMENT OF ELECTRONICSIV-Semester
CIRCUITS
EC5405 - LINEAR INTEGRATED
(Regulation 2019)
Max.Marks: 100
Time: 3hrs
amplifier in
and role of the operational
significance
CO comprehend and appreciate the
1
Ability to
world
the present contemporary operational amplifier.
circuit using
CO 2 Ability to design new analog linear using linear lCs.
communication systems
CO 3 Ability to analyzer and develop
in real time scenario.
CO 4 Ability to deploy the data converters system design
ICs and circuits for analog
appropriate
CO 5 Ability to select
BL -Bloom's Taxonomy Levels
-Understanding,L3 - Applying,
L4 - Analysing, L5 -Evaluating, L6 - Creating)
(L1- Remembering, L2
PART- A(10 x 2=
20 Marks)
(Answer all Questions)
Marks CO BL
Questions
Q. No 2 1 1
Define utput Offset voltage.
2 1 3
generating a constant current of
circuit for
Design the Widlar
Use V=25mV,
l6=10uA. Assume Vcc=10V, VBE=0.7V,B=125.
= 1ma 2 2 3
Iref
ta step input voltage of
|Drawthe output of an op-amp integrator, if
HV is fed as input for 0 0.3 ms with C
sts 10nF and = R =20K 2
= 72 mV.
VH 2 2 3
circuit with
Design an inverting Schmitt trigger
voltage = +13V.
Assume, supply voltage =+15V, saturation
2 3 1
diagram of an AM detector using PLL.
Draw the block
Coefficient of 2 3 2
6 f=100 KHz, the
If
voltage to frequency transfer
VCO frequency 5 MHZ and N=100 in
VCO, K, =2 MHz/V, fo the is
What is the dc control Voltage at lock?
the frequency Multiplier.
CMOS Inverter Switch used in DAC 2 4 1
Draw the
of a 14 bit ADC ifthe full Scale output is 10V.
4 2
Find the resolution
to Vec in a 555timer? 2 5 1
Why pin 4 is connected
2 5
the switching regulator.
|List the advantages of
PART- B (5 x 13 = 65 Marks)
Marks CO BL
Q. No Questions
3
8 1
Describe the freguency compensation techniques
in an Op-Amp
11 (a)(0)
in detail.
5 1 3
amplifier with a gain of 50.
(0)A741C Op-Amp is used an inverting
741Cis upto 20KHz.
The voltage gain vs frequency curve of flat
can be applied without
What maximum peak to peak input signal
distorting the output.
OR
1 3
Describe the Input Bias current with relevant diagrams and how
to reduce the offset voltage due to Input Bias Current.
neat diagram.
5 2
OExplain the Active Load with
neat 8 2 2
12 (a)(i) Derive the output voltage of Full Wave rectifier circuit with
Circuit diagram
differentiate an input 5 2 3
that
(ii) Design an op-amp differentiator will
signal with fmex 100Hz assume C,=0.1 pF
OR
8 2 2
Derive the output of a three Op-Amp instrumentation amplifier
with neat circuit diagram
with the cut-off 5 2 3
At Design a second order Butterworth Low-Pass filter
frequency of 2KHz.Assume, C=0.1uF
and derive its output.
8 3 1
13 (a) (i) Draw the Four Quadrant Multiplier circuit 5 3 3
the Free running Frequency, Lock in range and Capture
(ü) Obtain
range for the circuit shown below.
R
268 ks2
O9TTON4)
10 8 0.01
ufF
7 Deimnodulated output oU0
o
AT
Reference output 025
6
oput NE 565
GHENNAI
o VCO output ()
KROLLER
YNIWY
o 001 HF
OR
IC 566 Voltage Controlled Oscillator 8 3 1
Draw the block Diagram of
and explain its operation.
the NE/SE 565 and explain 5 3 1
Drawthe functional block diagram of
ti)
its operation.
R-2R Ladder circuit with the 8 4
Obtain the output voltage of 4-bit
word of dadadzd=1100 (d.LSB).
input
5 4 1
)Briefly explain the Sample and Hold Circuit.
OR
neat block diagram and derive
8 1
14 (b) (i) Describe the Dual slope ADC with
its output.
5 4 3
(i) Design the 2-bit Flash type ADC with necessary diagrams.
capacitor 7 5
With neat diagrams, explain the operation of Switched
filter.
6 5
Explain the Tuned amplifier with neat diagrarn
OR
IC 723 and obtain Its
7 5 3
15 (b)() Construct theHigh Voltage regulator using
Output.
in detail.
6 5
(ü) Describe the functions of Isolation Amplifier
PART- C (1 x 15= 15 Marks)
(Q.No.16 is compulsory)
Marks CO BL
Q. No Questions
5 6
t0 Design a DC Lamp
of the
Dimmer circuit using
Lamp. Assume relevant
555 to control
components.
the
Draw the
12
brightness
circuit diagram and explain the working in detail.
3 2 3
Design a Square wave generator using Op-amp with
the
C=0.01 uF.
frequency of oscillations is 2 KHz. Assume,
1ONALCONTR
500
02
CHENNA
025
KOUYNINS
