Amr Wael
Member level 5
Hello ,
I am designing LPF before a multiplexer in a daq , the purpose of the design is for elimenating noise not for Anti-aliasing since I am going to use a sampling frequency that is fast enough with respect to the signal's frequency.For this reason , I have selected my cut off frequency based on the input signal frequency not the sampling frequency but my question is when designing the passive Filter components should I take into consideration the output impedance which corresponds to the Rds on of the MUX 450 ohms?
Thank you very much in advance.
I am designing LPF before a multiplexer in a daq , the purpose of the design is for elimenating noise not for Anti-aliasing since I am going to use a sampling frequency that is fast enough with respect to the signal's frequency.For this reason , I have selected my cut off frequency based on the input signal frequency not the sampling frequency but my question is when designing the passive Filter components should I take into consideration the output impedance which corresponds to the Rds on of the MUX 450 ohms?
Thank you very much in advance.