Inductorless filters: a survey II. Linear active and digital filters

In this two-part survey the author has attempted to review the main methods of inductorless filter design being pursued at the present time. These filters are of particular interest because they may provide the replacement for the LC filters that are being eliminated from electronic equipment as a result of the trend toward microminiaturization. This month´s installment discusses inductorless filters of both the linear active and digital types.