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The Designer's Guide Community Forum › Design › Analog Design › what is the role of the cap in this comparator?
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what is the role of the cap in this comparator? (Read 1465 times)
xwj623
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what is the role of the cap in this comparator?
Aug 21st, 2009, 3:11am  
the two cap in the red circle showed in the fig.

thanks.
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Berti
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Re: what is the role of the cap in this comparator?
Reply #1 - Aug 21st, 2009, 6:24am  
I think that this caps should cancel the cgs of the top PMOS transistors (they contribute negatively since they are cross-connected). Some people also do that to reduce the cgs of input-pairs.

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