Synthesis of multiple-input translinear element log-domain filters

Presents a single procedure for synthesizing multiple-input translinear element (MITE) log-domain filters from state-space descriptions. We can obtain such state-space descriptions from a variety of sources, and the procedure that is described can be utilized regardless of the source of the description. We can often derive such descriptions conveniently from already extant filters that have been previously implemented using a different class of filters. The author illustrates the synthesis procedure by deriving two simple MITE log-domain filters from single-ended voltage-mode OTA-C filter prototypes-both a first-order lowpass filter and a fully tunable second-order lowpass filter are synthesized