vidivici.world
Junior Member level 3
Hi, I want to test the GBW of CMFB in this OTA, but don't know where to separate the circuit and give the input or test the output. Can anybody tell me please? Thanks a lot[/img]
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NO, can't be that way, at least we should not break the feedback network composed of M5/Ra/M7/M4, besides vr2 is a reference voltage, maybe we should not replace it with input signal.frankliner said:Input signal at vr2. break the loop at node 3. output node 4.
ella1923 said:break loop at node 3..supply 1vac on the other input of m7, measure GBW at node connecting the two resistors, Ra
BackerShu said:I don't think break at node 5 is resonable because the exact output of the CMFB is node2.