Hello!
I am simulating the noise effect on an opamp output. The output is buffered so I used both pnoise and transient noise to calculate the rising jitter rms of the output signal. My problem is that the pnoise and transient noise give me pretty different results. (pnoise: 2.8ps; trans. noise: 4ps, these values make big difference to my design) Please can you tell me which result should I rely on in such case. My simulation setup, simulation results, and circuit test bench are attached as below. Thank you a lot!