cadence depending source parameter

[chippendale]

Hi,
I want to chance the output voltage of of a ccvs depending on a current and depending on the voltage at another node. The transresistance of the ccvs is then somthing like v(node_x,0). I assume that this transresistance is only calculated at the beginning not during it. How can I set the ccvs that the transresistance is calculated consistently?

 

[erikl]

I'm sure that you can input a variable into the Transresistance field of the ccvs, something like (Vvariable/I(fix or variable)), e.g (V_SNS/Ix) or (V_SNS/1e-06). But I don't know if just the initial value or the instantaneous value of V_SNS will be considered. Just try it.

If you only want Vout = Iin * R and R=f(Vin), you could also run Iin through a resistor (analogLib res), whose Resistance field you fill with a similar variable as above. Vout is the voltage over this resistor.