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SSCD IIT Kanpur
·
Basic Analog Building Blocks
·
57 videos
EE610: Analog IC design-1 (2025)
Original playlist on YouTube
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Videos in this playlist
Lec 1(1): Why non-linear ckts? 1-port amp. I-V char; operating point & small-signal linear eq. ckt
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Lec 1(2): I-V char. of 2-port non-linear network to work as an amp.; Small-signal linear circuit
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Lec 2(1): A 45 minute recap/intro to MOSFET: from the point of view of building analog circuits
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Lec 2(2): Common-source amplifier: Biasing the transistor
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Lec 3(1): Constant-voltage biasing for a common-source amplifier
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Lec 3(2): Motivation for constant-current biasing; Drain and source feedback
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Lec 4(1): Biasing common-source amplifier with source feedback; pMOS common-source amplifier example
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Lec 4(2): Common-drain and common-gate; Resistance looking into the source of a transistor
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Lec 5: Evolution of differential amplifier (from common-source to 5-transistor amplifier)
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Lec 6(1): Cascode current source; Recap of some common impedances
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Lec 6(2): The 5-transistor amplifier: DC operating point
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Lec 6(3): The 5-transitor amplifier: Output resistance & Short-circuit transconductance
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Lec 7(1): 5-transistor differential amplifier: Is it really an opamp?
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Lec 7(2): The 5-T OTA: Common-mode gain & differential mode gain
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Lec 7(3): The 5-T OTA: Resistance looking into different nodes
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Lec 7(4): Relevance on the range for input common-mode and output
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Lec 8(1): Input common-mode range & output swing limits in the 5-T OTA
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Lec 8(2): How to learn & analyze analog circuits? eg of flipped & super source follower
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Lec 9(1): Difference between a VCVS and VCCS in negative feedback
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Lec 9(2): Understanding slewing & slew rate in the 5-T OTA
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Lec 9(3): Introduction to telescopic cascode
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Lec 9(4): Discussion of a couple of example problems
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Lec 10(1): Telescopic cascode, high-swing cascode: Input common-mode range & output swing limits
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Lec 10(2): Deriving the telescopic cascode
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Lec 10(3): Folded cascode: swings in unity feedback & advantages over telescopic cascode
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Led 11(1): Gain-boosted cascode
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Lec 11(2): Poles in circuit: When can pole locations be guessed by inspection?
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Lec 12(1): Poles in a circuit: When can poles be guessed by inspection?
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Lec 12(2): Zeros in a circuit
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Lec 12(3): Example of an uncontrollable/unobservable state
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Lec 12(4): Finding poles & zeros in a common-drain structure by inspection
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Lec 12(5): Poles & zeros in common-source structure; Intro to Miller effect
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Lec 13(1): Can Miller effect be used to find high-freq pole? intuition for pole locations
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Lec 13(2): Poles & zeros due to the ac coupling capacitors used for biasing
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Lec 14(1): Poles in 5-T OTA; Zeros in differential-mode transfer function
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Lec 14(2): Poles & zeros in cascode and telescopic cascode
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Lec 14(3): Motivation for multi-stage OTAs
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Lec 15(1): Need for DC negative feedback in opamps/OTAs
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Lec 15(2): Finding the signs of opamp for negative feedback
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Lec 15(3): Discussion of few problems
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Lec 16(1): A 25 min recap of the course...
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Lec 16(2): Does negative feedback reduce output resistance? Types of negative feedback
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Lec 16(3): First-order system in negative feedback; Unity loop gain freq. & closed-loop bandwidth
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Lec 17: Understanding frequency compensation via Root Locus; Phase margin; LHP zero vs. RHP zero
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Lec 18: Miller compensation; Two-stage Miller compensated OTA; Rough design example
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Lec 19(1): Miller compensation: Eliminating the RHP zero
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Lec 19(2): Two-stage feedforward compensation
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Lec 20(1): Nested Miller & Feedforward compensation
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Lec 20(2): Pseudo diff. vs. fully diff. ckts; Need for common-mode feedback in fully diff. ckts.
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Lec 21: Common-mode feedback (CMFB) choices & design considerations; 2-stage Miller OTA with CMFB
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Cadence demo: Systematic design of a two-stage Miller OTA & tackling the gate parasitic capacitance
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Lec 22(1):Two-stage feedforward OTA with current re-use; Common-mode rejection due to CMFB
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Lec 22(2): Process variation & random mismatch; Pelgrom's model
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Lec 24: Input referred noise voltage & current calculations; Noise & Offset in 5-T OTA
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Lec 25: Noise in fully-diff amp; Noise-power trade-off in analog circuits; Noise scaling & FoM
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Lec 26(1): Course summary
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Lec 26(2): Analog layout basics; what to do post schematic design? Concluding remarks
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