Table of Contents

EE3002: Analog Circuits(Aug.-Nov. 2021)

Instructors

Classrooms

Schedule

E slot(Tu 11-11:50am; W 10-10:50am; Th 8-8:50am; Fr 4:50-5:40pm)

Course page on moodle

Registered students can login and see the course page at https://courses.iitm.ac.in/. Resources, tutorials, exam schedules, discussion forum etc. can be accessed from the moodle page.

Teaching Assistants

Login to moodle at https://courses.iitm.ac.in/ to post questions and contact TAs and faculty.

Evaluation (Tentative)

Two quizzes (40%); Final exam (40%); Tutorials (20%)

Recorded lectures

The recorded video lectures from a previous year of the course are available here.

Lectures

  1. Lecture #1 (pdf): Introduction to non-linear elements
  2. Lecture #2 (pdf): Analysis of circuits with non-linear elements including operating point and small-signal analysis
  3. Lecture #3 (pdf): Using diode as a non-linear element
  4. Lecture #4 (pdf): Non-linear analysis of circuits with a diode, Zeroth-order approximation of I-V characteristics of a diode
  5. Lecture #5 (pdf): Linear analysis of circuits with zeroth-order approximation, analysis of a linear two-port network for maximum output gain
  6. Lecture #6 (pdf): Introduction to MOSFETs
  7. Lecture #7 (pdf): Input/Output characteristics of NMOS, small-signal model of NMOS
  8. Lecture #8 (pdf): Small-signal model of NMOS (contd.)
  9. Lecture #9 (pdf): Operating-point and small-signal analysis of a common source (CS) amplifier
  10. Lecture #10 (pdf): Small-signal analysis of a common source (CS) amplifier (contd.), input/output swing limits in a CS amplifier
  11. Lecture #11 (pdf): Input/output swing limits in a CS amplifier (contd.), channel length modulation in NMOS, NMOS small-signal model with channel length modulation
  12. Lecture #12 (pdf): Gain variation with voltage biasing, current biasing for NMOS
  13. Lecture #13 (pdf): Current biasing for NMOS (contd.)
  14. Lecture #14 (pdf): Replica based NMOS current biasing
  15. Lecture #15 (pdf): Small-signal analysis with current biasing for CS amplifier, common drain (CD) amplifier
  16. Lecture #16 (pdf): CD amplifier with current biasing, cascaded CS and CD amplifier
  17. Lecture #17 (pdf): Opamp based fixed current biasing
  18. Lecture #18 (pdf): Opamp based fixed current biasing (contd.)
  19. Lecture #19 (pdf): Opamp based fixed current biasing (contd.), current mirrors
  20. Lecture #20 (pdf): Voltage Controlled Voltage Source (VCCS) using NMOS
  21. Lecture #21 (pdf): Voltage Controlled Voltage Source (VCVS), Current Controlled Current Source (CCCS) using NMOS
  22. Lecture #22 (pdf): CCCS (contd.), Current Controlled Voltage Source (CCVS) using NMOS
  23. Lecture #23 (pdf): Introduction to PMOS, PMOS operating point and its small-signal model
  24. Lecture #24 (pdf): Converting nMOS circuits to pMOS
  25. Lecture #25 (pdf): Converting nMOS circuits to pMOS; Limits on the gain of a common-source amplifier
  26. Lecture #26 (pdf): Limits on the gain of a common-source amplifier; Weak inversion model of the MOS transistor
  27. Lecture #27 (pdf): Active load for realizing a high-gain common-source amplifier
  28. Lecture #28 (pdf): nMOS and pMOS common-source amplifiers with active load; CMOS inverter; Large signal input-output characteristics
  29. Lecture #29 (pdf): Amplifiers and digital gates; Biasing a high-gain amplifier
  30. Lecture #30 (pdf): Biasing a high-gain amplifier using negative feedback; CMOS inverter as an amplifier
  31. Lecture #31 (pdf): Controlled sources using an opamp; Realizing an opamp using MOS transistors
  32. Lecture #32 (pdf): Realizing an opamp using MOS transistors; Differential amplifier
  33. Lecture #33 (pdf): Differential amplifier with a current mirror load
  34. Lecture #34 (pdf): Differential amplifier with a current mirror load-small signal equivalent
  35. Lecture #35 (pdf): Differential amplifier with a current mirror load-Differential and common-mode gains
  36. Lecture #36 (pdf): Differential amplifier with a current mirror load-Swing limits
  37. Lecture #37 (pdf): Single-stage opamp with a buffer; Two-stage opamp
  38. Lecture #38 (pdf): Two-stage opamp; DC negative feedback and setting up of the operating point
  39. Lecture #39 (pdf): Two-stage opamp; Negative feedback and stability
  40. Lecture #40 (pdf): Two-stage opamp; Dominant pole compensation
  41. Lecture #41 (pdf): Two-stage opamp; Dominant pole compensation; Pole splitting
  42. Lecture #42 (pdf): Two-stage opamp; Dominant pole compensation; Pole splitting; Zero-cancelling resistor

Tutorials

  1. Tutorial #1 (pdf): Circuits with diodes
  2. Tutorial #2 (pdf): Swing limits in single-transistor amplifier
  3. Tutorial #3 (pdf): Calculating operating point and swing-limits in a PMOS based CS amplifier

Link to original lecture video page from previous years:

All years, all courses from VLSI group: http://www.ee.iitm.ac.in/videolectures/doku.php?id=allyears

Tutorials

Problem sets will be posted on moodle. 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. (The dates below are only tentative ones and can be changed at any time)

Simulation exercises for further learning

LTSpice tutorial/simulation exercises: The simulation files are hosted on GitHub. The link to it and a set of guidelines are compiled in the PDF below. The exercises were designed to explain LTspice by simulating various circuits. Different circuits have been chosen to explain different analysis and testbench setups e.g. R-2R ladder / RC filters / RLC circuits / Rectifiers / Wein Bridge oscillator / Single stage Opamp / 555 Timer / MOSFETs. Most of those circuits have either been covered in previous or ongoing courses.

Use the TSMC 0.18um MOSFET Model Files from: http://www.ee.iitm.ac.in/~nagendra/cadinfo.html

References

Pre-requisites

Attendance

Please enter your roll number in the chat window as soon as you join the class on the video conference session.