An amplifier has a gain Ad,dB = 40 dB. Its common-mode rejection ratio is CMRRdB= 120 dB.
It is used to amplify an input which has a 200mV desired signal along with an undesired common-mode signal ("noise"). The signal-to-noise ratio SNRdB= -40 dB.
What is:
1. Input noise (V)
2. Output signal (V)
3. Output noise (V)
4. Output signal-to-noise ratio (V)
5. Output signal-to-noise ratio (dB)