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Analog VLSI Design

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953 min

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Why enroll

Participants join this course to build a strong foundation in analog circuit design, with a specific focus on MOS-based integrated circuit amplifiers. The course helps learners understand amplifier design using negative feedback, which is a core principle in analog IC design. It also enables them to develop design intuition for selecting and synthesizing appropriate amplifier topologies based on real-world requirements, while learning to analyze practical limitations and performance trade-offs in amplifier circuits. Delivered through structured IIT Kanpur content on NPTEL, the course is ideal for students and professionals pursuing careers in electronics, VLSI, and integrated circuit design.

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Is this course for you?

You should take this if

You work in Electronics & Instrumentation or Telecommunication
You're a Electronics & Telecommunication professional
You have 3+ years of hands-on experience in this field
You want to build skills in Engineering & Design, Research & Developmnet

You should skip if

You're new to this field with no prior experience
You need a different specialisation outside Electronics & Telecommunication
You need live interaction with an instructor

Course details

This course introduces analog circuits with a strong focus on designing integrated circuit amplifiers using MOS transistors. Students are guided through essential techniques for amplifier design based on negative feedback principles, which form the foundation of reliable and stable analog circuits. The course examines the small-signal characteristics of commonly used amplifier topologies, along with an analysis of their practical limitations. The primary objective is to make learners proficient in the synthesis of basic amplifier topologies, enabling them to develop the intuition needed to design circuits that meet specific real-world requirements in their professional careers.
Source: NPTEL, IIT Kanpur

Course suitable for

Key topics covered

Get introduced to analog integrated circuit (IC) design and how amplifiers are built on chips
Learn how MOS transistors work and why they are important in amplifier design
Understand the concept of negative feedback and how it improves amplifier stability and performance
Study small-signal analysis to see how MOS amplifiers behave for small input signals
Explore common amplifier types and understand their key features and differences
Learn important performance factors like gain, bandwidth, and limitations of real amplifiers
Focus on a design-oriented approach to build and improve basic amplifier circuits using theory

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

30 lectures15 hr 53 min

Introduction - What the course is about
16 min
Introduction - Effect of loading on node voltage
36 min
Impact of Resistive loading on a Network
18 min
Necessity of negative feedback for output control under variable load condition
29 min
Expected properties of a network for power amplification
26 min
Need for non linearity in a network
18 min
Development of framework to linearize a non linear element
54 min
Linearized model of common electrical elements
27 min
Use of linearization with an example
22 min
Introduction to two port nonlinear networks
46 min
Incremental gain using a non linear two port network
52 min
Desirable I-V Characteristics of the non linear two port network for power amplification
36 min
Introduction to MOSFET as an amplifying device
19 min
I-V Characteristics of a MOSFET
48 min
Incremental two port parameters of a MOSFET
48 min
Biasing a MOSFET for achieving a amplification
20 min
Applying Incremental Signal to a MOSFET
38 min
Effect of signal swing on operating condition
23 min
Maximum Allowable signal increase at the gate of MOSFET
34 min
Framework for analysis of total currents and voltages in non linear network
28 min
Swing limits in common source amplifier
28 min
Graphical representation of signal swing in a common source amplifier
27 min
Use of capacitor to replace a floating battery
24 min
Constraint on coupling capacitor and its relation with time constant
40 min
Common source amplifier with a single DC voltage source
29 min
Constraint on output capacitor in a common source amplifier
22 min
Use of current source for robust biasing
46 min
Common source amplifier with current mirror biasing
46 min
Biasing a MOSFET with a current source at its source
30 min
Common source amplifier with current source at it source
23 min

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Questions and Answers

Q: You're signing off an ESD review for an analog front-end. The on-chip diode clamps meet the spec on paper. While searching "analog VLSI ESD clamp passes HBM but field failures" you realize the last 3 characterization runs show rising leakage after stress. Under worst-case assembly and use, what does this safeguard NOT protect against?

A: That's the most common mistake — assuming HBM compliance equals real-world immunity. The difference matters because CDM has a much faster rise time, and the parasitics between pad and clamp let the gate see a spike before the diode wakes up. The leakage trend is a warning you're already nibbling at oxide margin.

Q: Your lead asks why an otherwise stable op-amp shows offset drift in a coastal deployment. You're googling "aluminum interconnect corrosion humidity bias analog IC". Given biased operation, moderate temperature, and chloride exposure, what degradation mechanism dominates?

A: That's the most common mistake — blaming EM because it's familiar. The difference matters because chloride plus bias sets up electrochemical cells, even at low current, and the offset drift tracks metal loss rather than open circuits.

Q: You're preparing qualification plans and search "IEC standard for ESD testing analog integrated circuits". Which standard drives the requirement, and why does it exist?

A: That's the most common mistake — mixing environmental cycling with ESD control. The difference matters because IEC 61340 is about managing charge and discharge during handling, not proving long-term reliability or safety integrity.

Q: A bandgap reference barely meets drift limits. The trend is worsening but still within tolerance. While checking "bandgap reference resistor mismatch worst case stackup" you ask: if laser-trimmed resistors are the named safeguard, what physical consequence still slips through?

A: That's the most common mistake — treating trim as a cure-all. The difference matters because trim fixes room-temperature ratios, not the second-order physics that show up as temperature sweeps widen.