ECE 5/411 CMOS Analog IC Design: Lecture Notes for Spring 2015

Jan 13: lec1_ece5411.pdf – Course introduction, Analog models

Jan 15: lec2_ece5411.pdf – Analog models contd., review of small signal analysis, derivation of g_m and r_o. Diode-connected MOSFETs, Output resistance, body transconductance (g_mb).

Jan 20: lec3_ece5411.pdf – Small-signal analysis Example

Jan 22: lec4_ece5411.pdf – Transition frequency (f_T), Gain-speed tradeoff, Temperature dependent behavior, Short-channel design example.

Jan 29: lec5_ece5411.pdf – Current mirrors, Current mirror mismatch, Supply independent biasing, Beta multiplier reference (BMR).

Feb 3: lec6_ece5411.pdf – BMR start-up circuit, short-channel biasing.

Feb 5: lec7_ece5411.pdf – Cascode current mirrors, wide-swing cascode biasing.

Feb 10: lec8_ece5411.pdf – Regulated drain current mirror, replica bias generation schemes, conclude current references.

Feb 12: lec9_ece5411.pdf – Start single-stage amplifiers. Common source (CS) amplifier: low-frequency small and large signal behavior.

Feb 17: lec10_ece5411.pdf – CS amplifier: Source degeneration, linearity vs gain trade-offs.

Feb 19: lec11_ece5411.pdf – Source follower: low-frequency behavior, input range, applications (voltage buffer and level shifter) and limitations.

Feb 24: ISSCC, No in-class lecture. Watch video: lec12_ece5411.pdf and lec12_ece5411_video – Common gate (CG) amplifier.

Feb 26: lec13_ece5411.pdf – Sample midterm review.

Mar 3 (Tuesday): Midterm 1: Closed book, closed notes. Sample Midterm 1.

review1_ece5411.pdf and review1_5411_video – Review session for Midterm 1.

Mar 5: lec14_ece5411.pdf – Common gate (CG) amplifier, current buffer, Comparison of gain stages.

Mar 10: lec15_ece5411.pdf – Cascode amplifier, Lemma for estimating gain in amplifiers (A_v=-G_mR_out), folded Cascode amplifier, Miller effect, poles in a system. 

Mar 12: lec16_ece5411.pdf – Common source (CS) stage frequency response, open-loop poles and RHP zero.

Mar 17: lec17_ece5411.pdf – CS frequency response, RHP zero, pole-splitting, Miller compensation.

Mar 19: lec18_ece5411.pdf – Conclude pole splitting, SF, CG, Cascode frequency response.

Mar 24&26: Spring break from instruction.

Mar 31: lec19_ece5411.pdf – Start Differential Amplifiers-Biasing and common mode range.

Apr 1: lec20_ece5411.pdf – Diff-amps – large signal behavior.

Apr 7: lec21_ece5411.pdf – Diff-amps – Half-circuit analysis, CM equivalent circuit, CMRR and its significance. Diff-amp with current mirror load.

Apr 9: lec22_ece5411.pdf – Diff-amps –Frequency response Diff-amp detailed analysis. Start Opamps (Read ahead in the textbooks: Razavi Chapters 9&10, CMOS Chapter 24).

Apr 14 (Tuesday): Midterm 2: Closed book, closed notes. Sample Midterm 2.

review2_ece5411.pdf and review2_5411_video – Review session for Midterm 2. Review of RHP zero calculation.

Apr 16: lec23_ece5411.pdf – Telescopic Opamp – replica biasing, limitations. Folded-Cascode Opamp.

Apr 18: Project Help Session (2-3PM MEC 103): project_help_session.pdf, opamp_design_slides.pdf

lec_proj1_ece511_video, lec_ece511_proj1.pdf – Discussion on Opamp design project from a previous year.

Apr 21: lec24_ece5411.pdf – Two-stage Opamps. Negative-feedback systems – overview, loop-gain, time-domain settling.

Apr 23: lec25_ece5411.pdf – Opamp Stability: loop-gain, closed-loop stability, phase margin. STB analysis: examples, 2nd-order system settling behavior, phase margin (see demo Matlab files).

Apr 28: lec26_ece5411.pdf – Opamp: Finite DC gain, loop-bandwidth and transient settling, closed-loop gain and settling accuracy, slewing in opamps.

Apr 30: lec27_ece5411.pdf –Bandgap references (BGR): Temp-Co’s, CTAT, PTAT, Zero TempCo reference design.

May 1 3 (Sunday) 11:59 PM: Project Report Due as a PDF by Email

May 5 (Tuesday) Final Exam: 5:30-7:30 PM. Closed book, closed notes. Sample Final Exam (Solution). You are allowed a cheat sheet (only one side of an A4 sheet). Do bring your calculators.

MATLAB Files

The cumulative MATLAB files archive developed during the course is here.

Study guide for using reference books

The correspondence between the topics covered in lectures and the reference textbooks is available here.

Lecture Videos

Pre-recorded lecture videos from 2011 can be viewed here.