artho
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Hi,
I want to design a fully differential op amp with a ideal CMFB. What is the gain and other specs that the CMFB amplifier have to be? And, as i'm using resistor divider to obtain the common-mode voltage, what is de ideal value of these resistors? I know that they have to be higher than the output impedance of the amplifier, but how high?
Thanks.
I want to design a fully differential op amp with a ideal CMFB. What is the gain and other specs that the CMFB amplifier have to be? And, as i'm using resistor divider to obtain the common-mode voltage, what is de ideal value of these resistors? I know that they have to be higher than the output impedance of the amplifier, but how high?
Thanks.