Video Lecture Series by IIT Professors ( Not Available in NPTEL)
"VLSI Data Conversion Circuits"
By Prof. Nagendra Krishnapura and Prof.Shanthi Pavan
For more video Lectures .... www.satishkashyap.com
For free ebooks ...... www.ebook29.blogspot.com
Lecture 1 - Course overview and introduction.
Lecture 2 - Sampling, Spectral properties of sampled signals, Oversampling and its implications on anti-alias filter design.
Lecture 3 - Time Interleaved Sampling, Analysis of a Ping-Pong Sampling system.
Lecture 4 - Ping-pong Sample and Holds continued, Analysis of Offset and Gain Errors in Time-Interleaved Sample and Holds.
Lecture 5 - Sampling Circuits (NMOS, PMOS and CMOS Switches), Distortion due to the Sampling Switch.
Lecture 6 - Thermal Noise in Sample and Holds, Charge Injection in a Sampling Switch.
Lecture 7 - Bottom Plate Sampling, The Gate Bootstrapped Switch.
Lecture 8 - The Gate Bootstrapped Switch (continued), the Nakagome Charge-Pump.
Lecture 9 - Characterizing a Sample-and-Hold, Correct choice of input frequency, Discrete Fourier Series Refresher.
Lecture 10 - FFT Leakage and the Rectangular Window.
Lecture 11 - FFT Leakage (contd), Spectral Windows, the Hann Window
Lecture 12 - Spectral Windows (contd), the Blackman Window, Introduction to Switch Capacitor Amplifiers
Lecture 13 - Switch Capacitor Circuits, Parasitic Insensitive SC Amplifiers
Lecture 14 - Nonidealities in SC Amplifiers - Finite Opamp Gain and DC Offset., Lecture 14 - Part 2 - Finite Opamp Gain-Bandwidth Product.
Lecture 15 - Introduction to Fully Differential Operation.
Lecture 16 - Fully-differential operation (contd), motivation for common-mode feedback.
Lecture 17 - Fully Differential SC-circuits, the "Flip-Around" Sample and Hold, DC Negative Feedback in SC Circuits.
Lecture 18 - ADC Terminology, Offset and Gain Error, Differential Nonlinearity (DNL).
Lecture 19 -Integral Nonlinearity (INL), Dynamic Characterization of ADCs, SQNR, Quantization Noise Spectrum.
Lecture 20 - Quantization Noise Spectrum (contd), SFDR, Flash A/D Converter Basics.
Lecture 21 - Flash A/D Converter Basics, the Regenerative Latch.
Lecture 22 - The Regenerative Latch (contd).
Lecture 23 - Motivation to use a Preamp, Preamp Offset Correction (Autozeroing).
Lecture 24 - Autozeroing a Differential Preamp, Subtracting References from the Input.
Lecture 25 - Coupling Capacitor Considerations in an Autozeroed Preamp.
Lecture 26 - Transistor Level Preamp Design.
Lecture 27 - Necessity of an up-front sample and hold for good dynamic performance. Timing issues in a flash ADC.
Lecture 28 - Bubble Correction Logic in a Flash ADC, Comparator Metastability, Case Study.(VERY POOR AUDIO QUALITY !)
Lecture 29 - Flash ADC Case Study (Continued).
Lecture 30 - D/A Converter Basics, INL/DNL, DAC Spectra and Pulse Shapes.
Lecture 31 - NRZ vs RZ DACs, DAC Architectures.
Lecture 32 - Binary Weighted versus Thermometer DACs.
Lecture 33 - Binary vs Thermometer DACs (Contd), Current Steering DACs.
Lecture 34 - Current Steering DACs (contd) .
Lecture 35 - Current Cell Design in a Current Steering DAC.
Lecture 36 - Current Cell Design (contd), Layout Considerations in Current Steering DACs.
Lecture 37 - Oversampled Approaches to Data Convresion, Benefits of Oversampling.
Lecture 38 - Oversampling with Noise Shaping, Signal and Noise Transfer Functions, First and Second Order Delta-Sigma Converters.
Lecture 39 - Signal Dependent Stability of DSMs, the Describing Function Method.
Lecture 40 - Stability in DSMs (continued).
Lecture 41 - Maximum Stable Amplitude of DSMs and Relation to Out of Band Gain, Systematic NTF Design.
Lecture 42 - Systematic NTF Design (contd), the Bode Sensitivity Integral and its Implications on NTF Design.
Lecture 43 - Estimating the Maximum Stable Amplitude from simulation, Computation of in-band SNR, Windowing revisited.
Lecture 44 - Introduction to Continuous-time Delta Sigma Modulators (CTDSM).
Lecture 45 - CTDSM basics (contd), time-scaling of CTDSMs.
Lecture 46 - The inherent anti-aliasing property of CTDSMs.
Lecture 47 - Excess Loop Delay in CTDSMs.
Lecture 48 - Time-constant changes in CTDSMs, Influence of opamp nonidealities.
Lecture 49 - Effect of opamp nonidealities (contd) - finite gain bandwidth, Effect of ADC and DAC nonidealities.
Lecture 50 - Effect of DAC element mismatch (contd), Dynamic Element Matching (Randomization).
Lecture 51 - Dynamic Element Matching by Data Weighted Averaging.
Lecture 52 - Effect of Clock jitter in CTDSMs.
Lecture 53 - Finding Loopfilter Coefficients in Higher Order CTDSMs.
Lecture 54 - Dynamic Range Scaling of the Loop Filter.
