Signal Chain filtering - Filter considerations

Question

What are the main differences to consider when designing your filter for single channel signal chain VS multichannel (multiplexed) signal chain architectures?

ADIApproved · Accepted Answer

An analog filter for a single or a multiple channel signal must provide bandwidth and noise limiting with minimum addition to the signal chain noise, power, and cost. In addition, for multiple channel application a filter or filters must have a short transient response to maximize the switching speed of a mux selecting each channel in succession or arbitrarily.)