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Query about AD8038 in Low Pass Filter Design

Question asked by WayneQ on May 31, 2016
Latest reply on Jul 28, 2016 by rvieja

Hi, there

 

I design a low pass filter with AD8038. My desgin follows Figure 44 in the datasheet.

 

But the testing result is poor. The corner frequency seems not 6MHz and the insertion loss of inband is about 8dB. please see attachment of the result.

Could you please help with the issue or give some comments on it?

 

Thanks!

 

Br,

Wayne

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