Analog VLSI Design

Introduction - What the course is about

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16 min

Introduction - Effect of loading on node voltage

Impact of Resistive loading on a Network

Necessity of negative feedback for output control under variable load condition

Expected properties of a network for power amplification

Need for non linearity in a network

Development of framework to linearize a non linear element

Linearized model of common electrical elements

Use of linearization with an example

Introduction to two port nonlinear networks

Incremental gain using a non linear two port network

Desirable I-V Characteristics of the non linear two port network for power amplification

Introduction to MOSFET as an amplifying device

I-V Characteristics of a MOSFET

Incremental two port parameters of a MOSFET

Biasing a MOSFET for achieving a amplification

Applying Incremental Signal to a MOSFET

Effect of signal swing on operating condition

Maximum Allowable signal increase at the gate of MOSFET

Framework for analysis of total currents and voltages in non linear network

Swing limits in common source amplifier

Graphical representation of signal swing in a common source amplifier

Use of capacitor to replace a floating battery

Constraint on coupling capacitor and its relation with time constant

Common source amplifier with a single DC voltage source

Constraint on output capacitor in a common source amplifier

Use of current source for robust biasing

Common source amplifier with current mirror biasing

Biasing a MOSFET with a current source at its source

Common source amplifier with current source at it source