On Tuesday 13 September 2005 21:57, david.pallant@prometheanworld.com wrote: > <html><body> > > > > <p><font size=2 face="sans-serif">If you've got a decent sized filter > capacitor (e.g. 10n) between the input pin and ground I imagine that > would constitute a 'very' low impedance to charge anything inside the > Mega88 even if the capacitor was fed from a series 100k.</font> > <p><font size=2 face="sans-serif">Dave Pallant</font> > <br> > <br><font size=2><tt>AVR-Chat@yahoogroups.com wrote on 13/09/2005 > 10:14:40:<br> <br> > > From the Mega88 datasheet:</tt></font> > <br><font size=2><tt>> <br> > > "The ADC is optimized for analog signals with an > output <br> > > impedance of approximately 10 kOhms or less. If such a source is > <br> > used, the sampling time will be negligible. If a source with Hmmm... not so nice to read, is it? Please post emails in plain text. -- /"\ Bernd Felsche - Innovative Reckoning, Perth, Western Australia \ / ASCII ribbon campaign | I'm a .signature virus! X against HTML mail | Copy me into your ~/.signature / \ and postings | to help me spread!
Message
Re: [AVR-Chat] Sensor filtering
2005-09-13 by Bernd Felsche