GIC low pass filter?

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viau2555

viau2555

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Joined 2014
capslock said:
A few years ago, Burr-Brown propagated the use of a GIC low pass filter at a DAC's output or ADC's input instead of the more common Sallen-Key and multiple feedback configurations. Advantages were supposedly lower distortion and noise.

In the newer data sheets, even that of the PCM1704, they have converted to mulitple feedback. Why is that? Lower component count? Were there unknown disadvantages to the GIC topology? Anybody tried it?

Eric

P.S. the attached app note is really pdf format and should be openend with Acrobat, but the forum insisted it does not like pdf file extensions...
Click to expand...

File link is broken. Here is a new link to a PDF file from www.TI.com website.
https://www.ti.com/lit/an/sbaa001/sbaa001.pdf
Cheers
 
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