An active filter with two matched 2nd order Butterworth low-pass filters with rail-to-rail input/output swing
One resistor is needed for setting cut-off frequency up to 5 MHz
Using two resistors cut-off frequency can be set for up to 10 MHz, which makes the filter suitable for systems for data communication and video signal processing
Filter blocks can be programmed jointly, completely independent or cascaded for 4th order filter
Generating filter with band-pass response possible