A Square-RooDt omainF ilter Basedo n A New Geometric-mean Circuit

A cunent-mode square-root domain filter based on a new geometric-mean circuit is presented- The circuit is a tunable first-orfur low pass filter, working in lotv voltage, and feattting low nonlinearity. It employs MOSFETs that operate in both strong inverted santration and triode regions. Simulation results by HSPICE confirm the validity of the proposed design technique and show high pedormance of the proposed circuit.

Keywords:

Current-mode , companding filter , square-root-domain , total harmonic distortion