====== EC201: Analog circuits (Aug.-Nov. 2008) ====== These lectures are available on the web for the benefit of students at IIT Madras and elsewhere. Copyrights to these rest solely with the instructor and IIT Madras. Copying them, publishing them, rehosting them on other servers, or using them for any sort of commercial gain is prohibited. ===== Instructor: Nagendra Krishnapura ===== This is an introductory course on Analog Circuits. Familiarity with basic linear electrical networks is assumed. At IIT Madras, the prerequisite courses are [[http://www.ee.iitm.ac.in/~nagendra/videolectures|Electrical and Magnetic Circuits]] and [[http://nptel.iitm.ac.in/video.php?courseId=1049|Networks and Systems]]. If you wish to download these lectures for offline viewing, save the ''.swf'' file and view it in a browser with flash plugin or a standalone flash player. - {{:ec201_2008:ec201-intro.pdf|2008-07-29: Introduction to the course}} - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080730.swf|2008-07-30: Linearity; Nonlinear systems and introduction to incremental analysis]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080731.swf|2008-07-31: Small signal incremental equivalent circuits]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080801.swf|2008-08-01: Small signal incremental equivalent circuits]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080805.swf|2008-08-05: Incremental equivalents of common one port elements; Nonlinear two port networks]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080806.swf|2008-08-06: Incremental two port parameters; Constraints on incremental y-parameters to realize high gain amplifiers]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080807.swf|2008-08-07: Large signal characteristics of a "good" amplifier device; MOS transistor and its characteristics]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080808.swf|2008-08-08: MOS transistor characteristics; Realizing the MOS transistor amplifier]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080813.swf|2008-08-13: Quiz I and miscellaneous discussions; MOS transistor equations and terminology]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080814.swf|2008-08-14: MOS common source amplifier; Biasing; Decoupling capacitors]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080819.swf|2008-08-19: Swing limits]] - 2008-08-20: Swing limits (no recording-refer to last year's lectures [[http://www.ee.iitm.ac.in/~nagendra/shanthi_lectures/EC201/16AugEC201/16AugEC201.html|here]] and [[http://www.ee.iitm.ac.in/~nagendra/shanthi_lectures/EC201/17AugEC201/17AugEC201.html|here]]) - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080821.swf|2008-08-21: Swing limits revisited]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080822.swf|2008-08-22: ac coupling capacitors; Gain sensitivity to bias; Constant current biasing]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080827.swf|2008-08-27: Common source amplifier with a constant current bias]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080828.swf|2008-08-28: Biasing a common source amplifier with a drain feedback resistor]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080829.swf|2008-08-29: Biasing a common source amplifier current source at the source terminal]] - 2008-09-02: Introduction to negative feedback (no recording-refer to last year's lecture [[http://www.ee.iitm.ac.in/~nagendra/shanthi_lectures/EC201/29AugEC201/29AugEC201.html|here]]) - 2008-09-03: More on negative feedback; Using an opamp to realize VCVS and CCVS (no recording-refer to last year's lecture [[http://www.ee.iitm.ac.in/~nagendra/shanthi_lectures/EC201/30AugEC201/30AugEC201.html|here]]) - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080904.swf|2008-09-04: Negative feedback systems; opamp circuits; CCVS using an opamp]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080905.swf|2008-09-05: Biasing techniques cont'd-Using a resistor at the source; sensing at the drain and feeding to the source]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080909.swf|2008-09-09: Quiz 3; Realizing current sources; Channel length modulation; VCVS using a transistor]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080910.swf|2008-09-10: Realizing a VCVS-the common drain amplifier]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080911.swf|2008-09-11: Realizing a VCCS using the MOS transistor]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080916.swf|2008-09-16: Realizing a CCCS-The common gate amplifier]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080917.swf|2008-09-17: Realizing a CCVS-The drain feedback amplifier]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080918.swf|2008-09-18: CCVS summary; Introduction to the pMOS transistor]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080919.swf|2008-09-19: pMOS equations and small signal equivalent circuit; pMOS common source amplifier; biasing a pMOS transistor at a constant current]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080924.swf|2008-09-24: Quiz4; pMOS VCVS]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080925.swf|2008-09-25: pMOS VCCS, CCCS, CCVS]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080926.swf|2008-09-26: Active load, CMOS inverter]] - * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080930a.swf|2008-09-30: Inverter large signal characteristics]] * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20080930b.swf|2008-09-30: CMOS inverter self biasing; use as a transconductor]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081008.swf|2008-10-08: Introduction to bipolar junction transistors]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081010.swf|2008-10-10: NPN, PNP large and small signal models; Thermal runaway]] - * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081014a.swf|2008-10-14: Bipolar transistor biasing; common emitter amplifier; VCVS]] * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081014b.swf|2008-10-14: Quiz 5 discussion]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081015.swf|2008-10-15: Bipolar transistor VCVS, VCCS, bootstrapping]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081016.swf|2008-10-16: CCCS and CCVS using BJTs]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081017.swf|2008-10-17: High frequency transistor model; frequency response of amplifiers]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081022.swf|2008-10-22: Common source amplifier frequency response]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081023.swf|2008-10-23: Common source amplifier, Common gate amplifier frequency response]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081024a.swf|2008-10-24: Common Drain amplifier frequency response, input, and output impedances; Colpitts oscillator]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081024b.swf|2008-10-24: Differential and common mode signals and half circuits; Differential pair]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081029.swf|2008-10-29: Differential pair-small signal analysis, CMRR]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081030.swf|2008-10-30: Differential pair with current mirror load]] * See [[http://www.ee.iitm.ac.in/~nagendra/EE539/200801/lectures/20080318/20080318.swf|this lecture]] from EE539 for a discussion of the output resistance of a differential pair with a current mirror load - * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081101a.swf|2008-11-01: Single stage opamp-common mode and output voltage limits]] * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081101b.swf|2008-11-01: Feedback amplifiers using a single stage opamp]] * [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081101c.swf|2008-11-01: Two stage opamp]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081104.swf|2008-11-04: Stability of negative feedback systems-1st, 2nd, and 3rd order amplifiers in a feedback loop]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081105.swf|2008-11-05: Stability of negative feedback systems; second order system with damped step response; Stability criteria based on loop gain magnitude and phase plots]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081106.swf|2008-11-06: Dominant pole compensation; pole splitting compensation]] - 2008-11-07: Two stage amplifier compensation; calculating the miller compensation capacitance(no recording; see [[http://www.ee.iitm.ac.in/~nagendra/presentations/20090109vlsiconf/200901vlsi_4/200901vlsi_4_controller.swf|this lecture]] from the [[http://www.ee.iitm.ac.in/~nagendra/videolectures/doku.php?id=200901vlsiconf:start|tutorial]] at the 2009 International conference on VLSI design) - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081111.swf|2008-11-11: Two stage opamp compensation; internal dc bias of the opamp; importance of dc negative feedback]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081112.swf|2008-11-12: Inverting and noninverting amplifiers using an opamp; MOS opamp]] - [[http://www.ee.iitm.ac.in/~nagendra/EC201/200808/lectures/20081114.swf|2008-11-14: MOS opamp]]