Frequency　compensation　of　active-RC　elliptic　filter　is　enabled　for　the　first　time　by　employing　a　derivative-free　architecture.　In　conjunction　with　a　built-in　automatic　unity-gain　bandwidth　(ωu)　tracking　scheme,　the　prototype　4th-order　active-RC　elliptic　low-pass　filter　(LPF)　measures　a　digitally　programmable　bandwidth　of　14-23　MHz,　a　two-tone　IM3　at　6　MHz　consistently　better　than-80　dB　with　a　full-scale　input　of　over　800　mVpp,　a　1-dB　in-band　ripple　and　45-dB　stop-band　rejection,　all　across　wide　temperature　and　voltage　ranges.　The　LPF　dissipates　5.8　mW　from　a　1.2-V　supply　and　occupies　0.1　mm2　in　0.13-μm　CMOS.　©　2010　IEEE.