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COURSE TITLE : DIGITAL ELECTRONICS & OP- AMPS
COURSE CODE : 4038
COURSE CATEGORY : A
PERIODS/WEEK : 5
PERIODS/SEMESTER : 90
CREDITS : 4
TIME SCHEDULE
MODULE TOPIC PERIODS
I Number systems and Digital Circuits 21
Test I 1
II Combination Circuits 21
Test II 1
III Sequential Logics 22
Test III 1
IV Operational amplifies 22
Test IV 1
TOTAL 90
Rationale
This subject is intended to teach the students about various
aspects of digital circuits and operational
Amplifier. Students also get the basic concept of digital
circuits and its applications in various systems
This will also enable them to learn the idea of computer
hardware and the elements of industrial
automation in future.
OBJECTIVES
MODULE I
1.1.0. Understand the Number systems & Digital
Circuits1.1.1. Know binary and hexadecimal, numbers systems
1.1.2. Convert decimal, hexadecimal to binary and vice versa
1.1.3. Study binary addition, subtraction, multiplications and
divisions and study BCD code
1.1.4. Know 1s and 2s complement and subtraction using
complement
1.1.5. Know about logic gates
1.1.6. Study truth table of AND, OR, NOT, NAND, NOR, and EX-OR
gates1.1.7. Know about TTL, ECL and CMOS - windows and profiles of
different families
1.1.8. Study sourcing and sinking current of different logic
family.
1.1.9. Compare different logic families
MODULE II
2.1.0. Combinational logic circuits
2.1.1. Study the Boolean algebra,
2.1.2. Study the universal gates using NAND and NOR gates
2.1.3. Study the De Morgans Theorem
2.1.4. Study the use of K map for solving Boolean expressions
having 4 variables.
2.1.5. Study half adder & full adder circuit2.1.6. Study
Encoder-decoder
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MODULE III
3.1.0. Sequential logics3.1.1. Know the different types of shift
registers
3.1.2. Give a typical shift register using flip-flops(JK,D)
3.1.3. Understand the operation of an Up counter and Down
counter
3.1.4. Study the asynchronous counter and synchronous
counter3.1.5. Study Synchronous binary counter and BCD decade
counter and its wave forms
3.1.6. Study different modes of asynchronous counter (Mode 6,
Mode 8)
MODULE IV
4.1.0. Operational amplifies
4.1.1. Understand the working of operational Amplifier
4.1.2. Study the characteristics of op-amp
4.1.3. Study the op-amp circuits inverting non inverting,
difference, summing amplifiers,
Integrator& differentiator
4.1.4. Applications of op-amp - zero crossing detector, level
detector, Schmitt trigger
4.1.5. State the working principle of half wave and full wave
precision rectifiers
COURSE CONTENT
MODULE I
Digital CircuitsDigital circuits Number system - Binary
Hexadecimal conversions BCD Binary addition-
subtraction multiplication and division - 1s and 2s compliment
usage for subtraction
Logic gates: - basic gates symbol truth table AND, OR, NOT EXOR
gate
universal gate NAND & NOR
Logic families TTL, ECL, CMOS, - advantages & disadvantages
comparison
MODULE II
Combinational circuits
Boolean algebra universal gates using NAND & NOR, De Morgans
theorem K map for solving
Boolean expressions having 4 variables- Half adder and full
adder circuits half and full subtractor-
Encoder-decoder -Multiplexing and Demultiplexing- SR, clocked
SR, master slave SR, J K, JK Master
slave and D flip-flop
MODULE III
Sequential logicsTypes of shift
registers-Classification(SISO,SIPO,PISO&PIPO)-shift register
using flip-flops- Up
counter and down counter- asynchronous counter and synchronous
counter- binary counter and BCD
decade counter and its wave forms- Study different modes of
counter
MODULE IV
Introduction to Operational amplifies
concept of virtual groundInput offset voltage, input offset
current, input bias current, output offset
voltage, CMRR, slew rate etc Characteristics of ideal and actual
op-amp Op-amp circuits- inverting
amplifier, non-inverting amplifier(derivation is needed),
voltage follower, comparator, difference
amplifier, summing amplifier, integrators , differentiators.
Application of op-amp-Zero crossing detector,
positive and negative voltage level detector Schmitt trigger,
Half-wave and full wave precisionRectifier using Op-Amps
