To address these issues, a well-designed first-order analog low-pass filter at the analog front-end of the oscilloscope, plus a programmable first-order IIR digital post-processing filter, are ...

The cell is based on 3rd order Butterworth low-pass filter (LPF) with cut-of frequency adjustment in a wide range. There are 2 modes for cut-off frequency programming: manual and automatically. The ...