Vsd Intern - Analog Comparator Design Using Sky130

[LeeAndro]

Last updated 4/2021MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHzLanguage: English | Size: 464.25 MB | Duration: 1h 3m

Comparator Circuit design and layout using Sky130 foundry PDKs

What you'll learn
Basics of Analog comparator Circuit design and layout
Integrate Sky130 foundry PDKs with comparator circuit design
Basics of comparator hysteresis characteristics

Requirements
VSD - Circuit design and SPICE simulations
VSD - Custom layout
VSD Intern - Analog Bandgap Reference design using Sky130

Description
A comparator is a device that compares two analog inputs and outputs a digital signal indicating which input is larger.​

So it has two analog input teals and one binary digital output. When the difference between two analog input signals approach zero, noise on the inputs will cause spurious switching of digital output. This rapid change in output due to noise can be prevented by hysteresis. Hysteresis is switching the output high or low at different input signal levels. In place of one switching point, hysteresis introduces two: one for rising edge, and one for falling edge of voltage or current. The difference between the higher-level trip value (VH) and the lower-level trip value (VL) equals the hysteresis voltage (HYST).A comparator can be divided into three distinctive pieces - a front-end differential amplifier, amplifier stage and output stage.This comparator consists ofFront-end differential amplifierAmplifier of the output from front-end differential sageNAND gate to act as buffer as well as incorporate the enable pinInverter to act as final buffer before output. The NAND and Inverter improves the slew and provides a little gain.Positive feedback differential set-up.Various Comparator specifications are listed belowropagation Delay -The difference between the input crossing the reference voltage and the output chag the logic state. Generally, comparators are fast Input Offset -The difference between the input voltages at the instance where output voltage equals zero voltsGain-Ideal Comparator has infinite gain and output jumps from low to high at a specific difference in input voltage. Ideal comparators will have a linear transfer curve. There are multiple other parameters like output swing, Output type, input and output current and impedance but we will focus on above including hysteresis.This webinar will discuss all design, layout and specification details using ngspice, Xschem and Magic

Overview
Section 1: Introduction

Lecture 1 Introduction

Section 2: Tool Installation And Testing (LIVE Labs)

Lecture 2 Steps to install MAGIC

Lecture 3 Steps to install Sky130 PDK and NGSpice

Lecture 4 Steps to configure Xschem with Sky130 PDK

Lecture 5 Final Steps to patch Sky130 PDK with NGSpice and Xschem

Lecture 6 Xschem testing with Sky130 PDKs

Section 3: Comparator Circuit design and layout (LIVE Labs)

Lecture 7 Introduction To Comparator Circuit Components And Pre-layout Simulations

Lecture 8 Hysteresis And Simulation Stimulus

Lecture 9 Review EN, INP and IHyst Inputs

Lecture 10 Review Differential Stage Output - Vdiff

Lecture 11 Review Amplifier Output

Lecture 12 Impact Of Chag Differential Voltage On Common Mode

Lecture 13 Circuit To Layout Mapping

Lecture 14 Transistor Selection And Tech File Details

Section 4: Conclusion

Lecture 15 Post-Layout Simulation, Issues And FutureWork

Bner who is curious to know about circuit design and layout,Physical Design Professionals curious to know about IP design

HomePage:

https://www.udemy.com/course/vsd-intern-analog-comparator-design-using-sky130/

DOWNLOAD

https://1dl.net/ai2xdl6430bv/tEgPiv1v__VSD_Intern.rar