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AD8065 Spice model "VT0 out of range"

Question asked by npisenti on Feb 22, 2015
Latest reply on Feb 23, 2015 by npisenti

I'm trying to use the AD8065 spice model in a simulation with QUCS, but cannot seem to get it to work -- when I run the simulation, it throws the following errors:

 

checker error, value of `Vt0' (0.13) is out of range `.0,0]' in `JFET:J1'

checker error, value of `Vt0' (0.13) is out of range `.0,0]' in `JFET:J2'


I've spent a few frustrating hours unsuccessfully googling to figure out what is going on, so any help is much appreciated! I've attached the netlist for a simple unity-gain follower using the AD8065 for reference -- the offending lines are #41 & 42.


Thanks,

Neal

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