Hi,
With 1v out of the left buffer and 0v out of the right buffer, the current out of the first buffer is 1/(1k+1k) which equals 1/2000 amps, and that gets 'mirrored' into the 1k resistor so that produces 0.5v at node n009 right?
You should try to understand these circuits using DC first then AC later. They are DC coupled so you can understand a lot just by using DC.
With 1v out of the left buffer and 0v out of the right buffer, the current out of the first buffer is 1/(1k+1k) which equals 1/2000 amps, and that gets 'mirrored' into the 1k resistor so that produces 0.5v at node n009 right?
You should try to understand these circuits using DC first then AC later. They are DC coupled so you can understand a lot just by using DC.