importing measured i-v in spectre?

Hi

I need to validate a transistor DC-model and to do this I would like to
include the measured i-v characteristic in my spectre simulation. I have
browsed through analogLib in search for a std. component for this but
with no luck.

Is is possible and if yes .. then how to do this?

Best,

Jan

 

Jan,

From IC5033, you can define pwl controlled sources. For example:

//

curve (out 0 vin 0) vccs file="ivcurve.inp"
r1 (out 0) resistor r=1

v1 (vin 0) vsource dc=1

dc dc dev=v1 param=dc start=0 stop=5 step=0.1

save curve:1


The file ivcurve.inp contained i versus v data for the transistor curve I was
showing. So this gives you a voltage controlled current source with a transfer
function defined by the file.

Alternatively, you could use the "table" special function in the ADE calculator,
and read in the file and display it as a waveform (assuming you don't actually
need it in the simulator itself).

Regards,

Andrew.

 

Hi Andrew

Excellent .. thank you very much

/Jan