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LTspice: Iteration Limit Reached
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Mike Elliott
Mar 5, 2003, 12:46:19 PM3/5/03
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The circuit I'm playing with simulates fine with the standard OPAMP
model, but when I plug in a "real" opamp (any of those supplied with
LTspice) things get a little sticky. The simulation fails with a
"doAnalyses: Iteration limit reached" error, and the Error Log sez:
model, but when I plug in a "real" opamp (any of those supplied with
LTspice) things get a little sticky. The simulation fails with a
"doAnalyses: Iteration limit reached" error, and the Error Log sez:
Starting Gmin stepping
Gmin = 10
vernier = 0.5
Gmin = 1.67772
vernier = 0.25
vernier = 0.125
vernier = 0.0625
vernier = 0.03125
vernier = 0.015625
vernier = 0.0078125
Gmin = 1.67119
<snip>
Gmin = 0
Gmin stepping failed
Starting source stepping
Could not converge to DC with sources off!
Fatal Error: doAnalyses: Iteration limit reached
A simple circuit using the same opamp models works just fine, so I
reckon I'm using the parts right!
MikeE
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