analog2003
Newbie level 5
dc analysis
Hi all
I encountered a strange problem during a DC analysis in Cadence. 'x' is a variable in my circuit. The output of my circuit should be 0V for x=1 (for any vin =[-0.2 0.2]).
a) When I simulate the circuit for x=1;
and print the output DC node voltage, it reads -690mV
b) When I sweep the variable 'x' (including x=1 in the sweep) and plot the output node voltage, I actually see something close to 30uV (which is close to 0)
I do not understand if my circuit is operating right or I have to go about making some changes considering the first voltage. I am confused as to which one of these is trustworthy. Thanks in advance for your time and help.
Hi all
I encountered a strange problem during a DC analysis in Cadence. 'x' is a variable in my circuit. The output of my circuit should be 0V for x=1 (for any vin =[-0.2 0.2]).
a) When I simulate the circuit for x=1;
and print the output DC node voltage, it reads -690mV
b) When I sweep the variable 'x' (including x=1 in the sweep) and plot the output node voltage, I actually see something close to 30uV (which is close to 0)
I do not understand if my circuit is operating right or I have to go about making some changes considering the first voltage. I am confused as to which one of these is trustworthy. Thanks in advance for your time and help.
