IC APPLICATIONS LAB

Dept. of ECE CREC 1

LAB MANUAL

ON

IC APPLICATIONS

III B.TECH I SEMESTER ECE

(JNTUA-R13)

Verified and Compiled by:

Dr. V. THRIMURTHULU, M.E, Ph.D., MISTE, MIETE

Professor, Dept. of ECE

Mr. S. ALI ASGAR, M.Tech Ms. A.MOUNIKA, M.Tech

Assistant Professor, Dept. of ECE Assistant Professor, Dept. of ECE

DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING

CHADALAWADA RAMANAMMA ENGINEERING COLLEGE

CHADALAWADA NAGAR, RENIGUNTA ROAD, TIRUPATI (A.P) – 517506

IC APPLICATIONS LAB

Dept. of ECE CREC 2

LIST OF EXPERIMENTS

1. Study the characteristics of negative feedback amplifier

a. A Unity gain amplifier

b. A Non-inverting amplifier

c. An Inverting Amplifier

2. Design of an Instrumentation amplifier

3. Design of Astable Multivibrator

4. Design of an Op-amp as an Integrator

5. Design of a Function Generator

6. Design of Analog filters- I

7. Design of Analog filters- II

8. Design of Voltage Controlled Oscillator (VCO)

9. Design of Phase Locked Loops (PLL)

10. Design of Automatic Gain Control (AGC)/Automatic Volume Control (AVC)

Characteristics

11. Design of Low drop out regulator

12. Design of DC-DC Converter

IC APPLICATIONS LAB

Dept. of ECE CREC 3

1.STUDY THE CHARACTERISTICS OF NEGATIVE FEEDBACK AMPLIFIER

1(A). INVERTING AMPLIFIER

AIM: To Design an Inverting amplifier for the given specifications using ASLK-PRO.

APPARATUS REQUIRED:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. By adjusting the amplitude and frequency knobs of the function generator, appropriate input

voltage is applied to the inverting input terminal of the Op-Amp.

3. The output voltage is obtained in the CRO and the input and output voltage waveforms are

plotted in a graph sheet.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 4

CIRCUIT DIAGRAM:

DESIGN:

We know for an inverting Amplifier ACL = RF / R1

Assume R1 (approx. 10 KΩ) and find Rf

Hence Vo(theoretical) = - ACL Vi

OBSERVATIONS:

S.No

Amplitude (V)

Input

Output

IC APPLICATIONS LAB

Dept. of ECE CREC 5

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 6

1(B). NON-INVERTING AMPLIFIER

AIM: To Design a Non-Inverting amplifier for the given specifications using ASLK-PRO.

APPARATUS REQUIRED:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. By adjusting the amplitude and frequency knobs of the function generator, appropriate input

voltage is applied to the non-inverting input terminal of the Op-Amp.

3. The output voltage is obtained in the CRO and the input and output voltage waveforms are

plotted in a graph sheet.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 7

CIRCUIT DIAGRAM:

DESIGN:

We know for a non-inverting Amplifier ACL = 1+(RF / R1 )

Assume R1 (approx. 10 KΩ) and find Rf

Hence Vo(theoretical) = ACL Vi

OBSERVATIONS:

S.No

Amplitude (V)

Input

Output

IC APPLICATIONS LAB

Dept. of ECE CREC 8

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 9

1(C). UNITY GAIN AMPLIFIER

AIM: To Design a Unity gain amplifier for the given specifications using ASLK-PRO.

APPARATUS REQUIRED:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. By adjusting the amplitude and frequency knobs of the function generator, appropriate input

voltage is applied to the non-inverting input terminal of the Op-Amp.

3. The output voltage is obtained in the CRO and the input and output voltage waveforms are

plotted in a graph sheet.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 10

CIRCUIT DIAGRAM:

DESIGN:

We know for a Unity gain Amplifier Vo=Vi

OBSERVATIONS:

S.No

Amplitude (V)

Input

Output

IC APPLICATIONS LAB

Dept. of ECE CREC 11

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 12

2. DESIGN OF INSTRUMENTATION AMPLIFIER

AIM: Design an Instrumentation amplifier of Differential mode gain of ‘A’ using three op-amps.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 3

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. By adjusting the amplitude and frequency knobs of the function generator, appropriate input

voltage is applied to the inverting input terminal of the Op-Amp.

3. The output voltage is obtained in the CRO.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 13

CIRCUIT DIAGRAM:

DESIGN:

We know for an instrumentation Amplifier

OBSERVATIONS:

S.No Amplitude (V)

Input V1=

V2=

Output

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 14

3. DESIGN OF ASTABLE MULTIVIBRATOR

AIM: To Design an Astable Multivibrator for the given specifications using ASLK-PRO.

APPARATUS REQUIRED:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. By adjusting the amplitude and frequency knobs of the function generator, the output

waveform is obtained in the CRO and the input and output voltage waveforms are plotted in a

graph sheet.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 15

CIRCUIT DIAGRAM:

DESIGN:

The Time period of Astable Multivibrator is

T = 2RCln [(1+β)/(1-β)]

Where β = R1/(R1+R2 )

Now the Frequency is given by f=(1/T)=_____________Hz

OBSERVATIONS:

S.No

R,C

Time Period (ms)

Frequency (Hz)

IC APPLICATIONS LAB

Dept. of ECE CREC 16

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 17

4. DESIGN OF OP-AMP AS AN INTEGRATOR

AIM: To design an Integrator circuit for the given specifications using ASLK-PRO.

APPARATUS REQUIRED:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2 Apply a Square wave and Sine wave inputs of 4V (p-p) for a frequency of 1 KHz.

3 By adjusting the proper amplitude and frequency knobs of function generator, appropriate

input voltage is applied to the inverting terminal of the op-amp.

4 The output waveform is obtained in the CRO and the input and output voltage waveforms are

plotted in a graph sheet.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 18

CIRCUIT DIAGRAM:

INPUT & OUTPUT WAVEFORMS:

IC APPLICATIONS LAB

Dept. of ECE CREC 19

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 20

5.DESIGN OF FUNCTION GENERATOR

AIM: Design and test function generator that can generate Square wave and Triangular wave

output for a given frequency.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. The output waveform is observed with then help of CRO.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 21

CIRCUIT DIAGRAM:

DESIGN:

The function generator produces a square wave at the Schmitt trigger output and a

triangular wave at the integrator output with the frequency (F) equal to

F=(1/4)RC(R2/R1)

OBSERVATIONS:

S.No

Frequency of Square Wave (Hz)

Frequency of Triangular Wave (Hz)

IC APPLICATIONS LAB

Dept. of ECE CREC 22

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 23

6. DESIGN OF ANALOG FILTERS-I

AIM: Design a Second order Butterworth Band-pass filter for a given center frequency.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. The output waveform is obtained with the help of CRO.

3. Apply a Square wave input with a frequency of 157 Hz a Sample output is obtained which is

shown in the figure below.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 24

CIRCUIT DIAGRAM:

OBSERVATIONS:

S.No

Frequency (Hz)

Output Voltage (V)

IC APPLICATIONS LAB

Dept. of ECE CREC 25

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 26

7. DESIGN OF ANALOG FILTERS-II

AIM: Design a Notch filter for a given center frequency.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. The output waveform is obtained with the help of CRO.

3. Apply a Square wave input with a frequency of 159 Hz a Sample output is obtained which is

shown in the figure below.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 27

CIRCUIT DIAGRAM:

OBSERVATIONS:

S.No

Frequency (Hz)

Output Voltage (V)

IC APPLICATIONS LAB

Dept. of ECE CREC 28

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 29

8. DESIGN OF VOLTAGE CONTROLLED OSCILLATOR

AIM: Design and test voltage controlled oscillator for a given specification.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. The output waveform is obtained with the help of CRO.

3. Vary the Control Voltage (Vc) and obtain the change in Frequency (fo)

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 30

CIRCUIT DIAGRAM:

OBSERVATIONS:

S.No

Control Voltage(Vc)

Change in frequency (fo)

IC APPLICATIONS LAB

Dept. of ECE CREC 31

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 32

8. DESIGN OF PHASE LOCKED LOOP

AIM: Design and test a PLL to a given frequency ‘f’.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. The output waveform is obtained with the help of CRO.

3. Measure the Lock range of the system

4. Measure the change in Phase of the output signal as the input frequency is varied within the

lock range.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 33

CIRCUIT DIAGRAM:

OBSERVATIONS:

S.No

Input frequency (Hz)

Output frequency (Hz)

IC APPLICATIONS LAB

Dept. of ECE CREC 34

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 35

10. DESIGN OF AUTOMATIC GAIN CONTROL (AGC)/AUTOMATIC VOLUME CONTROL (AVC)

AIM: Design a AGC System to maintain a peak amplitude of Sine wave output at 2V.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TL 082 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. The output waveform is obtained with the help of CRO.

3. Apply a Sine wave input and observe the amplitude at output.

4. Vary the input amplitude at fixed input frequency; the output amplitude should remain

constant for varying input amplitude within the lock range of the system.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 36

CIRCUIT DIAGRAM:

OBSERVATIONS:

Fixed Input Frequency=1 KHz

S.No

Input voltage (Vin)

Output voltage (Vout)

IC APPLICATIONS LAB

Dept. of ECE CREC 37

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 38

11. DESIGN OF LOW DROP OUT REGULATOR

AIM: Design and test a low drop out Regulator using TPS7250 IC.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TPS 7250 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. Vary the input voltage from 5.5V to 10V and observe the output voltage with the help of a

Multimeter.

3. Plot the Graph on a graph sheet by taking input voltage (Vin) on x-axis and output voltage

(Vout) on y-axis.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 39

CIRCUIT DIAGRAM:

OBSERVATIONS:

S.No

Input Voltage (Vin)

Output Voltage (Vout)

IC APPLICATIONS LAB

Dept. of ECE CREC 40

MODEL GRAPH:

RESULT:

IC APPLICATIONS LAB

Dept. of ECE CREC 41

12. DESIGN OF DC-DC CONVERTER

AIM: Design of a Switch mode Power Supply that can provide a regulated power voltage for a

given input range using the TPS 40200 IC.

APPARATUS:

S.No Name of the Apparatus Range Quantity

1 Function Generator 3 M Hz 1

2 CRO 30 M Hz 1

3 Dual RPS (0-30)V 1

4 ASLK-PRO TPS 40200 IC 1

5 Connecting Wires As Required

PRECAUTIONS:

1. Output voltage will be saturated if it exceeds ± 10V.

PROCEDURE:

1. Connections are given as per the circuit diagram in the ASLK-PRO.

2. Vary the input voltage from 6V to 10V and observe the output voltage with the help of a

Multimeter.

3. Plot the Graph on a graph sheet by taking input voltage (Vin) on x-axis and output voltage

(Vout) on y-axis.

PIN DIAGRAM:

IC APPLICATIONS LAB

Dept. of ECE CREC 42

CIRCUIT DIAGRAM:

OBSERVATIONS:

S.No

Input Voltage (Vin)

Output Voltage (Vout)

IC APPLICATIONS LAB

Dept. of ECE CREC 43

MODEL GRAPH:

RESULT: