For configuring a lot of our products you must decide to apply a 50Hz or 60Hz filter. This is due to the operating frequency of the power supply which is often a source of interference within ICs so it must be removed using a 50Hz/60Hz notch filter or a lowpass filter to improve SNR, we offer a number of products that can operate as a low pass or notch filter such as the MAX7410 or MAX263/4.