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design amplifier in 0.18um

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mohamadzi

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hello
i want to design amplifier in .18um by ads
1) i need the parameters of 0.18 um exapmple vthn,vthp, lamda(channel modulation)
,un cox,upcox??
2)when i design it, do i have to consider the velocity saturation in .18um????
thanks in advance
 

1) Get these parameters from the foundry you want to work with, or here from EDAboard, PTM (scroll down to bottom), MOSIS, or universities which provide GPDKs. Or check with ADS themselves.

2) Yes, when you use min. length and strong inversion operation.
 
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erikl said:
1) Get these parameters from the foundry you want to work with, or here from EDAboard, PTM (scroll down to bottom), MOSIS, or universities which provide GPDKs. Or check with ADS themselves.

2) Yes, when you use min. length and strong inversion operation.
Click to expand...

thanks for your reply
1)you said check with ADS themselves. how ??
2) can you give me a reference(textbook) for velocity saturation formula?
 
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hello

Approximately,
kp=u*cox/2=40 and kn=170 uA/v^2
Vthp and Vthn change with w/l but in design calculation you consider 0.5 volt
 

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rey1991 said:
Approximately, kp=u*cox/2=40 and kn=170 uA/v^2
Click to expand...
Yes, good values for 180nm process.

rey1991 said:
Vthp and Vthn change with w/l but in design calculation you consider 0.5 volt
Click to expand...
They change much more between different foundries and models. For this process I've seen values between 0.3V (high speed RF models) and 0.8V (low power models).
 

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