Bypass caps (was:Re: [sdiy] Silly question about dual vs. quad op amps
Tim Daugard
daugard at sprintmail.com
Tue Dec 6 18:04:56 CET 2005
From: "Samppa Tolvanen" <samppa.tolvanen at gmail.com>
That's a good question - How do You bypass OPAMPs?
I can see James posted already - For a quad, Do You use 2 caps between
GND and both supplies? How those are sized?
The others. Your using bypass scheme for OPAMPs - How do you do it? Or
let's say for analog power?
Bye, Samppa
I use a single sided power supply. +12V only. (works with analog and
CMOS.) I use one medium cap in each module where power enters the
module. A second cap to filters any internal bias supplies. That's it,
unless the module has a problem. Then I add an aditional cap where it
will clear up the problem. This takes more time to clear problems but
less cost in bypass caps.
Tim Daugard
AG4GZ 30.4078N 86.6227W Alt: 12 feet above MSL
http://home.sprintmail.com/~daugard/synth.htm
Who leans toward the less is better method of design. (But not always,
and not when it entails more work for software - just an old fogey who
prefers hardware to software.)
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