blackdeath320
Newbie level 1
![Newbie level 1](/styles/images/ranks/alevel1.gif)
Hey guys,
I was hoping someone could help me out with the noise analysis for a circuit. Basically the I'm using behavioural models to modulate a 2000Hz signal with a 90kHz carrier and the noise voltages at 90k for High power and low power amps 32.74nV and 68nV respectively from the simulations shown below. The first opamp is just used as a non-inverting amplifier and the second one is being used to demodulate the signal. Three more low power opamps form the anti-aliasing filter.
HP: https://i.imgur.com/pJBMQ.jpg
LP: https://i.imgur.com/QbTUN.jpg
Any help would be appreciated.
Regards
I was hoping someone could help me out with the noise analysis for a circuit. Basically the I'm using behavioural models to modulate a 2000Hz signal with a 90kHz carrier and the noise voltages at 90k for High power and low power amps 32.74nV and 68nV respectively from the simulations shown below. The first opamp is just used as a non-inverting amplifier and the second one is being used to demodulate the signal. Three more low power opamps form the anti-aliasing filter.
HP: https://i.imgur.com/pJBMQ.jpg
LP: https://i.imgur.com/QbTUN.jpg
Any help would be appreciated.
Regards
Last edited: