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Hi to all,
I would like to know what is the difference between ±Vref, the common-mode of the modulator and the common-mode of the integrator's amplifier.
Thank you for your help and I would like to know if the commun mode of the modulator should be equal to the commun mode of the amplifior ? and why you choose vref=±1V, I work with 0-3V power supply so I can't choose ±1V but I can choose 0-2V , the probléme in this case is: is there a reference circuit (IC) that can generate 2V? I know that there are the "Bandgap circuit" that generate ≈ 1.2V as a référence voltage
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