AnsweredAssumed Answered

How do compensate AD8302 IC for low frequency range of 1Hz to 1MHz?

Question asked by anushaas on Sep 29, 2015
Latest reply on Feb 25, 2016 by jdobler

I have the following questions regarding AD8302 IC?


1.Is it possible to use this IC for gain phase measurements over a frequency range of 1Hz to 1MHz ? (because even after using the low frequency connection diagram mentioned in AN-691,I am getting very erroneous result)


2.As per my understanding,the cutoff frequency is decided by the equation 1/2*pi*R*CC.So if I am using CC=470uF and R = 46 Ohm, my cutoff frequency is 7.36Hz.So shouldn't the IC give accurate readings at 100Hz?


3.What is the role of an external CFLT?Is it just to remove ripple or plays a role in deciding cutoff as well?