Anti aliasing filter

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Guest

Anti aliasing filter

Post by Guest »

I can find no reference to whether I need to use an analogue low pass anti aliasing filter before input to the ADC.
Could someone please let me know if this is a requirement and if so what filter to use when sampling at 1ms.
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Sarah

Post by Sarah »

Hi

Thank you for your post.

As there is no filtering on the inputs of our units, you may find a filter is of use in your application. I would not say however that it is essential to use one.

Hope this helps

Best Regards
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KM

Anti-Aliasing Filter

Post by KM »

I need to know about anti-aliasing filter. Hope you can help me

Q 1 : What is Anti-Alising filter?

Q 2 : how it works?

Q 3 : What is the function of Anti-Alising filter?

Q 4 : which products have Anti-Alising feature and
which boards have Anti-Alising filter circuit?

Q 5 : How a simple oscillator circuit that can generate about
frequency 10MHz look like.
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Sarah

Post by Sarah »

Hi

Thank you for your post.

There are no anti-aliasing filters present on any of our products.

Unfortunately I am unable to give you specific information on filters and how they work - this is something that you need to research yourself. You may find the following websites of use:

http://www.maxim-ic.com/appnotes.cfm/appnote_number/928
http://www.proav.de/index.html?http&&&w ... asing.html

Hope this helps

Best Regards
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