Hi some spectre simulation questions

[kytan]

:wink:
Hi there
I like to find out how to simulate ideal switches in spectre like those that you use when trying to simulate switches for switched capacitor integrators the equivalent in Spice would be something like
switmod
how to do that in spectre ?

 

[Hughes]

You may use four terminal relay or a veriloga module:

module switch(s, d, g);
inout s, d;
input g;
electrical s, d, g;
parameter threshold = 2.5;
analog begin
if( V(g) > threshold )
V(s, d) <+ 0.0;
else
I(s, d) <+ 0.0;
end
endmodule