AD8436 MODEL PSPICE

sl212946 over 4 years ago

Hi,

I can't use AD8436 spice model with pspice .

The output file contains :

X_U5.B3 +15V -15V X_U5.I X_U5.IF V ---------------$ ERROR -- Invalid parameter + IBUFVP -V VEE 4.8 160u 0

X_U5.B4 +15V -15V X_U5.I X_U5.IF V ---------------$ERROR -- Invalid parameter+ OBUFVP -V VEE 4.8 40u 0
X_U5.B5 +15V -15V X_U5.I X_U5.IF V----------------$ERROR -- Invalid parameter

I've changed the last line (.end change by .ends) and the line about B2 (B2 0 OUT I=I(V16) change by B2 0 OUT I=I{V16})

Could you tell me what is the right syntax for pspice ?

Thank you.

0 ADIApproved over 4 years ago

Hello,

I'll forward your EZ inquiry to a PSPICE expert, he has helped many SPICE users in the past.

Best,

js
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0 ADIApproved over 4 years ago

Hi,

Please use the attached netlist. Please let me know if this works.

Phil
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0 sl212946 over 4 years ago

Hi Phil,

Thank's a lot for your model.

It works really fine.

But there is something strange with the power supply stepping ( about 371 seconds with autoconverge !).

If I skip the initial transient bias point, the output goes to VCC (+5V) and slowly down to 0.707V (with 1V peak on input).

I have changed these parameters :

.OPTIONS ABSTOL= 1.0u
.OPTIONS ITL1= 1000
.OPTIONS ITL2= 1000
.OPTIONS RELTOL= 0.009

And now the results are the same with ADsimPE.

Thank's again.

Stephane.
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0 EZAdministrator over 3 years ago

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin
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0 everdu 5 months ago in reply to ADIApproved

Hello,

I'm also having troubles to make the model to work, it seems to be a SPICE 3 model and I think I need a SPICE 2, can you send me also the file (I can't see a link for it)

thanks and br

Enrique
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