I guess the answer will be no, but I'll ask anyway. Is it possible to build an analogue low pass filter that doesn't cause phase shift while still in the (almost)flat gain region?
Let's say a filter with a cutoff frequency of 200Hz will start changing the output signal phase well before 200Hz, an undesired behaviour. This is even worse with higher order filters.
With inductors maybe?
Let's say a filter with a cutoff frequency of 200Hz will start changing the output signal phase well before 200Hz, an undesired behaviour. This is even worse with higher order filters.
With inductors maybe?