Singular Matrix error on LTSpice

M

momo36

New Member

• Nov 3, 2016

• #1

hi,

i have designed a circuit designed in LTspice as attached with my txt file. When i want to run my design, it poped up with "Singular Matrix: check node in8 Iteration no1"

How do i fixed this error.

 

Attachments

• msb.asc

  3.3 KB · Views: 279
• cmosedu_models.txt

  11.3 KB · Views: 269

ericgibbs

Well-Known Member

Most Helpful Member

• Nov 3, 2016

• #2

hi 36,
Inputs IN8, 9 and 10 are floating.??

E

EDIT:
Added dummy IN8,9,10

 

Attachments

• A01.gif

  26.2 KB · Views: 315

M

momo36

New Member

• Nov 3, 2016

• #3

hi thanks for ur help. could u mind share me the asc file that u edited.

 

ericgibbs

Well-Known Member

Most Helpful Member

• Nov 4, 2016

• #4

momo36 said:

hi thanks for ur help. could u mind share me the asc file that u edited.

Click to expand...

hi36,
Attached the asc file.
The voltage value of 1v is an arbitrary value, just to keep LTSpice happy.
You should assign the correct voltage and signal type as required to in8,9,10
E

 

Attachments

• msb.asc

  3.7 KB · Views: 275