Re: MOS Models for circuit distortion analysis

On 22 Nov 2003 05:35:58 -0800, [EMAIL PROTECTED] (Subhajit Sen)
wrote:

>My question is: has anybody has been able to overcome
>this problem? I am aware of EKV model but do not
>have access to a practical model derived from
>characterizations that I could use.

Then you're out of luck.  Your choices are either to bias the signal
path away from vds=0, or change to a good model.

As you say, this is a known problem. The best solution is to choose a
model which has no vds=0 kink. This implies a model which isn't
source-referenced. Both BSIM3 and BSIM4 fail. EKV mostly is OK, but
the most successful models that meet these criteria are
surface-potential based models. 

--Steve