Slew-induced distortion of single-amplifier active filters using the gain-sensitivity product concept

The Volterra-Wiener series is used to obtain an analytical formula for slew-induced distortion (SID) in single-amplifier active filters. It is shown that the relative change of the transfer function caused by SID depends on the parameters of the operational amplifier (OA) and on the method of frequency compensation applied to it. This change also depends on the transfer function to be realized, on the amplitude of the input signal and on the gain-sensitivity product (GSP). It is shown that reducing the GSP also reduces the SID. The corresponding relationship was verified experimentally.