Integrated Circuits and Systems group, IIT Madras

EE5320: Analog IC Design(Jan.-May 2021)



  • Classes will be held in online mode. See the message sent to the class on Moodle for details.


D slot, MTech Calendar (Mo. 11-11:50am, Tu. 10-10:50am, We. 9-9:50am, Th. 12-12:50pm)

Course page on moodle

Registered students can login and see the course page at Resources, tutorials, exam schedules, discussion forum etc. can be accessed from the moodle page.

Teaching Assistants

Login to moodle at to post questions and contact TAs and faculty.


  • Assignments (20%)
  • Quiz-I (20%)
  • Quiz-II (20%)
  • Final Exam (40%)

Course Objective

  • Understanding of MOS transistors: Focus on the behavior relevant to analog IC design.
  • Develop design intuition: Feel for tradeoffs – noise, dynamic range, power.
  • Design based on hand calculations: Avoid perpetual “tweaking” in SPICE.
  • Gain hands-on design experience: High performance amplifier design project.

Course Outline

  • Introduction and Basic Concepts: analog vs digital, applications of analog ICs, CMOS technology and devices, device mismatch and errors, MOS transistor behavior, noise in passives & MOSFETs, systematic design procedure for basic amplifier.
  • Advanced Topics: multi-stage amplifiers, compensation techniques & loop stability, transient response in amplifiers, designing amplifiers for transient response Gm-C integrators, Fully Differential Opamps.
  • (Possible) Special Topics: Switched capacitor circuits; High-speed amplifiers etc

Recorded lectures (videos and notes)

All notes so far in a single pdf file: Lecture notes

  1. 2021-02-02: Resistors and Capacitors on ICs
  2. 2021-02-03: Noise in resistors and MOSFETs
  3. 2021-02-08: Noise in 2-port networks; input-referred noise
  4. 2021-02-09: Calculation of input-referred noise
  5. 2021-02-10: Input-referred noise of Common Source Amplifier - 1
  6. 2021-02-11: Input-referred noise of Common Source Amplifier - 2
  7. 2021-02-15: Input-referred noise calculation with capacitors
  8. 2021-02-16: Input-referred noise of Common Gate Amplifier
  9. 2021-02-17: Calculation of noise from Cascode device, active load
  10. 2021-02-18: Noise in differential circuits
  11. 2021-02-22: Calculation of noise of differential amplifier
  12. 2021-02-23: Introduction to Mismatch; Systematic mismatch
  13. 2021-02-24: Random Mismatch; Input-referred offset voltage
  14. 2021-02-25: Input-referred offset of differential amplifier
  15. 2021-02-27: One-stage opamp datasheet - 1
  16. 2021-03-02: One-stage opamp datasheet - 2
  17. 2021-03-03: Evolution of telescopic opamp
  18. 2021-03-04: Cascode current mirrors; telescopic opamp datasheet - 1
  19. 2021-03-08: Telescopic opamp datasheet - 2
  20. 2021-03-09: Telescopic opamp datasheet - 3
  21. 2021-03-10: Folded Cascode opamp
  22. 2021-03-11: Folded Cascode opamp datasheet - 1
  23. 2021-03-15: Quiz 1 discussion; Folded Cascode opamp slew rate
  24. 2021-03-16: Two-stage opamp at the block level; Miller compensation
  25. 2021-03-17: Two-stage opamp datasheet
  26. 2021-03-18: Two-stage opamp slew rate; opamp with low input CM voltage
  27. 2021-03-22: Two-stage opamp design example - 1
  28. 2021-03-23: Backgate effect; Two-stage opamp design example - 2
  29. 2021-03-24: MOSFET transit frequency
  30. 2021-03-25: Two-stage opamp with pole-zero cancellation compensation
  31. 2021-04-06: Pole-zero tracking circuits
  32. 2021-04-07: Three-stage opamp; Feedforward compensated opamp
  33. 2021-04-08: Fully Differential one-stage opamp
  34. 2021-04-09: Common Mode Feedback and its frequency compensation
  35. 2021-04-10: Fully Differential two-stage opamp
  36. 2021-04-12: Common Mode Feedback for Fully Differential two-stage opamp
  37. 2021-04-13: Introduction to Phase Locked Loops
  38. 2021-04-14: Type-I PLL phase domain incremental model
  39. 2021-04-15: PLL phase bode plots; Tristate phase-frequency detector
  40. 2021-04-16: Tristate PFD operation
  41. 2021-04-18: Type-I PLL reference feedthrough; Type-II PLL
  42. 2021-04-19: Proportional and integral paths; Charge pump
  43. 2021-04-20: PFD and Charge Pump non-idealities; Type-II PLL Bode Plots
  44. 2021-04-21: Introduction to oscillators
  45. 2021-04-22: Opamps and CMFB Q-A session
  46. 2021-04-24: Cross-coupled LC oscillator; Varactors
  47. 2021-04-24: LC VCO analysis; Varactors; PLL design example


Problem sets will be posted below. You are expected to solve them on your own. You can approach the teaching assistants for clarifications and help. You should work each one before the corresponding dates given below.

  1. Homework 1: pdf on process variations and mismatch - Due 11:59pm on Sunday 14th March 2021
  2. Homework 2: pdf on single-stage amplifiers - Due 11:59pm on Saturday 27th March 2021
  3. Homework 3: pdf on building blocks - Due 11:59pm on Friday 16th April 2021
  4. Homework 4: pdf on Fully Differential Amplifiers - Due 11:59pm on Thursday 29th April 2021
  5. Homework 5: pdf on Fully Differential Capacitive Feedback Amplifier - Due 11:59pm on Sunday 16th May 2021

All simulation assignments/projects will be done on LTSpice ( If you have access to another circuit simulator such as Spectre or Eldo through another course or through your research lab, you are welcome to use that simulator. Some simple simulation exercises for practice are listed below to get you started.

For the assignments and projects, use the IBM 130nm MOSFET Model Files from:


This course doesn't follow a single textbook. You can follow any of the references below for different sections of the course.

  • Behzad Razavi, Design of Analog CMOS Integrated Circuits, McGraw-Hill, August 2000.
  • The Design Of CMOS Radio-Frequency Integrated Circuits by Thomas H. Lee (Publisher: Cambridge University Press - 2006)
  • Carusone, Johns, and Martin, Analog Integrated Circuit Design, 2nd ed., Wiley, 2000.
  • Gray, Hurst, Lewis, and Meyer, Analysis and Design of Analog Integrated Circuits, 5th ed., Wiley 2009.

This course will mostly follow the lines of NPTEL course whose link is given below.

Knowledge of negative feedback control systems is essential for a good understanding of circuits. The book below is a very good reference. Chapters 8, 9, and 10 are particularly relevant to us.


If you are little rusty on basic circuit analysis or laplace transforms, refresh them from the references below or any of the widely used textbooks. In particularly, we will use Bode plots and Laplace transforms widely-they are described at the last two links below.


Attendance will be strictly enforced as per the latest IITM rules and regulations. Those falling short will not be permitted to write the end sem exam.