AVR-Chat

>>When i used scope to check the output, i can see overshoot and undershoot
> which are sometimes as big as the signal amplitude.
>
> When was the last time you compensated your scope probes?  Do you have a
> proper scope ground, ie. not a pigtail ground clip?
>
> See Linear Tech. AN92 for one example:
> http://cds.linear.com/docs/Application%20Note/an92f.pdf
>
> Analog Devices has some good information in their seminar series of PDFs
> as
> well,
> on proper measurement techniques.
>
>
> --
> http://www.wearablesmartsensors.com/
> http://www.softwaresafety.net/
> http://www.designer-iii.com/
> http://www.unusualresearch.com/
>
>
> [Non-text portions of this message have been removed]
>
>
I highly recommend the following Linear Tech application notes:

Linear Circuits for Digital Systems:
http://cds.linear.com/docs/Application%20Note/an31.pdf

High Speed Amplifier Techniques (very highly recommended)
http://cds.linear.com/docs/Application%20Note/an47fa.pdf

Jim Wagner
Oregon Research Electronics