Hi I was having some problems regarding ngspice. The simulation results in different operating points of the transistors without even changing any parameter. Did anybody come across with this kind of problem before? What could be the cause of this problem. Huge thanks!!!

What kind of circuit? Any positive feedback in it?

Simple differential active load

Ensure you are not using the '`tt_mm`' corner in your models. if on an xschem schematic check the 'STIMULI' symbol attributes. Replace

tt_mm

with '`tt`' or whatever corner with no mismatch (

mm

)

this is the stimuli code block

@Anıl Mert Ar Sorry i was mistaken, you must check the corner in the

MODELS

code block (or

corners

model block, whatever youy are using).

@Stefan Schippers Sorry for delayed reply. Model code block is TT_MODELS and everything seems to be in line with what you just said to me. Also my colleagues are having the same problem.