tenso
Advanced Member level 4
I know this is a question which has been asked here before but the old threads, while helpful, haven't answered my questions, so I would be grateful if someone can indulge me.
1) Why is the output common mode voltage only a concern in fully differential circuits? Why is there not a requirement to keep the output bias voltage at a required level in a circuit with only a single output (like the common diff. amp with a current mirror load?
2) What about a circuit with diode connected loads and a differential output? does it require CMFB?
3) is common mode only a feature of differential signals (either input or output) , i.e these signals have some common values, which doesn't apply if there is only one signal?
-Thanks
1) Why is the output common mode voltage only a concern in fully differential circuits? Why is there not a requirement to keep the output bias voltage at a required level in a circuit with only a single output (like the common diff. amp with a current mirror load?
2) What about a circuit with diode connected loads and a differential output? does it require CMFB?
3) is common mode only a feature of differential signals (either input or output) , i.e these signals have some common values, which doesn't apply if there is only one signal?
-Thanks