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I don't understand this error about bsim4.5 model Can anyone help ?
# sky130
a
I don't understand this error about bsim4.5 model Can anyone help ?
t
It's possible that this error exists in only one bin of the model. Can you try changing the device without changing the device width, meaning increase the number of fingers so that the device total width is the same but the width per finger is lower, placing the device in a different model bin?
a
It works when I keep the same width with lower number of fingers (2)
Also I just resimulate SAR ADC which is published and taped out so I don't understand why I get that error while it works with him
There are also errors with nvt transistor which also solved by varing the width and the fingers
t
Two possibilities: (1) Version of ngspice (are you using ngspice version 42?) and (2) Continuous models vs. discrete models (try 
libs.tech/combined/sky130.lib.spice
instead of 
libs.tech/ngspice/sky130.lib.spice
)
a
Yeah I version 42
t
Did you try the combined models?
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