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Negative miller capacitance

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promach

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How do Mc9 and Mc10 act as negative miller capacitance as mentioned in Figure 4.2 of http://lib.tkk.fi/Dipl/2011/urn100433.pdf

preamplifier_comparator.jpg
 

They act as capacitors, and are cross coupled across a differential amplifier. So the voltage they see is the opposite sign as normal.
 

 

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