bhl777
Full Member level 6
Hi All, I have the noise simulation results for a bandgap circuit. Am trying to calculate rms noise over 0.1Hz to 10Hz but not sure if my calculation is correct.
Here is my results. The left figure and the right figure were plotted from the same data. The only difference is that the Y-axis of the right figure is in log-domain.
There is an online tutorial regarding the calculation of rms noise over 0.1-10Hz for an op-amp circuit.
https://www.analog.com/media/en/training-seminars/tutorials/MT-048.pdf
I am not sure if I should follow the equations in page 3 of this tutorial to calculate my rms noise in 0.1Hz-10Hz. My question includes (1) Vnw number {should I use my noise data at 10Hz to calculate? } and (2)Fc {is it always true to use 0.7Hz Fc when we have FL=0.1Hz and FH=10Hz}?
Thank you!
Here is my results. The left figure and the right figure were plotted from the same data. The only difference is that the Y-axis of the right figure is in log-domain.
There is an online tutorial regarding the calculation of rms noise over 0.1-10Hz for an op-amp circuit.
https://www.analog.com/media/en/training-seminars/tutorials/MT-048.pdf
I am not sure if I should follow the equations in page 3 of this tutorial to calculate my rms noise in 0.1Hz-10Hz. My question includes (1) Vnw number {should I use my noise data at 10Hz to calculate? } and (2)Fc {is it always true to use 0.7Hz Fc when we have FL=0.1Hz and FH=10Hz}?
Thank you!