How can i design a analog IC?

[ringocheng]

Hi, I am an university student. I did not do an analog ic design before. Can any experienced teach me what is the 1st step on analog IC design?
My project title is CMOS Change pump. I dont know how to define the L/W ratio? How to make a VCO? Which should i need to consider 1st? Plsease give me a guideline for doing an analog design. Thank you.

Ringo Cheng
EEE, CUHK

 

[mark_nctu]

E-Book :

 

[pixel]

Hi, I am an university student. I did not do an analog ic design before. Can any experienced teach me what is the 1st step on analog IC design?
My project title is CMOS Change pump. I dont know how to define the L/W ratio? How to make a VCO? Which should i need to consider 1st? Plsease give me a guideline for doing an analog design. Thank you.

Ringo Cheng
EEE, CUHK

You should first learn how to make simple circuits like current mirrors, one stage amplifiers and differential amplifiers... But as a first you have to understand theory.
W/L ratio is dictated by dc operation point (currents and voltages) and matching property...

 

[pfd001]

Just start with the simple circuit, calculate it and then simulate it in cadence or hspice