[SI-LIST] Re: KPn and KPp in Level 49 spice transistor model


Try this Formula's:

Transistor in Saturation Region:

Vds>Vgs-Vt, where Vds is the drain-source voltage, Vgs is the gate source 
voltage and Vt is the threshold voltage.

To compute the KPp and KPn, use:

Id=KPn(W/L)(Vgs-Vt)^2.

Rgds

Harikrishnan



manthos labropoulos <manthoslmp@xxxxxxxx> wrote: 
Thanks Mr Hari

But is there any formula which gives you Kn and Kp
from the technology parameters of the transistors ? 

--- Hari krishnan 
---------------------------------
Ýãñáøå: > 
> Dear Manthos:
> 
> Try reverse engineer the parameter by constructing a
> common source amplifier with resistive peaking, in
> saturation region and re-calculate the parameter by
> the data provided by the listing file (HSPICE) or
> output file.
> 
> Although the accuracy of this method is quite
> doubtful but it helps in obtaining the required
> parameter for preliminary design purpose. 
> 
> Rgds
> 
> Harikrishnan
> manthos labropoulos wrote: 
> 
> Hi all
> 
> Can anybody tell me how can i calculate the
> Intrinsic
> transconductance for the NMOS and PMOS transistors
> (KPn and KPp) from the Level 49 spice model
> parameters
> ?
> 
> Thanks 
> 
>
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