using trise(dtemp) in an instance

Hi all,

I am trying to simulate an instance(Diode) operating at the
temperature different from other instance.
I know that in hspice, the DTEMP does the work.
I guess in cadence trise' is its substittue.

but when i use this parameter for the Diode, i see no effect in it.
Actually i am trying to use this as a temperature sensor.

could any one help me out

thanks...

 

Hi,

Of course the trise is supported in Spectre.
I've created a little testbench: 2 diodes forward biased with a VDC
source @ 2V:
//
D1 (net1 0) myPdiode l=W w=W m=1
D0 (net1 0) myPdiode l=W w=W m=1 trise=TRISE
//
trise is an instance parameter.

I include the model file where ''myPdiode " is defined :
include "MyPath/myPdiode.scs"

I run a DC sweep on TRISE from -50C up to 100.
The result is here attached:

http://riad-kaced-usenet-group.goog...beU35OUOm_Lkvg-WJxxNXyTEzfKN-m9S9niuHrq-IEXAE

My myPdiode.scs model file is a model you can find in the Virtuoso®
Simulator Circuit Components
and Device Models Manual.

More details about your netlist would be helpful.
Please don't post any proprietary data (models cards, files ...)

Riad.

 

hi Riad,

Thanks a lot...

Actually i did try this, but the problem was that I was not using the
diode in a right way that it is used to be used( i am new to diode
simulations) , i was trying it in the reverse-biased, without inputing
the correct value.

I using these diode as a temperature sensor with a reference diode
and inputing it to a slow-adc that i hve designed. i had already fired
few doubts on the slow-adc and your answers did help me out as these
did.

thanks again....

dinac