Iuri
Member level 2

I have a doubt about passive filters in differential inputs.
In low pass configuration I found this thread (https://www.edaboard.com/threads/176766/) that tells me to use the RC constant as:
R = R1 + R2
C = C1
But, if I want a high pass do I need to use the same idea or something like this:
R = R1
C = C1 + C2

Thanks!
In low pass configuration I found this thread (https://www.edaboard.com/threads/176766/) that tells me to use the RC constant as:
R = R1 + R2
C = C1
But, if I want a high pass do I need to use the same idea or something like this:
R = R1
C = C1 + C2

Thanks!