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ADA4941-1 opened input signal

Question asked by power-man on Mar 10, 2016
Latest reply on Mar 15, 2016 by harryh

Hello

 

I am considering Sallen-Key, Low-Pass Filter like figure 54 on the datasheet.

There is a situation that the input is opened.

Then the output would be unstable.

Should I put termination resistor?

If yes, which value can I use?

 

There is a little oscillation at output because of load capacitance.

How can I compensate it?

 

Regards,

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