The NI-9228 performs differential analog input. With channel-to-channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. The NI-9228 is simultaneous sampling with two options for filtering; a low-latency filter or a 50/60 Hz rejection filter. The low-latency filter enables users to use this module in industrial or control applications while getting better external noise rejection.