for power supply bypass it's best to use the smallest caps that you can solder in -- for me that's 0603 or 0805 surface mount ceramics -- the problem with a silver mica is that the leads are long so you are placing a lot of distance between the device and its ground plane which negates the bypass.
both analog devices and texas instruments have good application notes on bypass and PCB layout.
this apnote on ADI's website is particularly good:
http://www.analog.com/library/analogDialogue/archives/39-09/layout.pdf
both analog devices and texas instruments have good application notes on bypass and PCB layout.
this apnote on ADI's website is particularly good:
http://www.analog.com/library/analogDialogue/archives/39-09/layout.pdf
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