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Compact continuous-time analog rank-order filter implementation in CMOS technology

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3 Author(s)
Ramirez-Angulo, J. ; Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA ; Lackey, C. ; Diaz-Sanchez, A.

A simple CMOS implementation of a continuous-time analog rank-order N input filter is presented that uses N operational transconductance amplifiers. Rank is digitally programmable for all values from k=1 (min case) to k=n (max case). The implementation is based on a compact transconductor with high transconductance gain and symmetrical output current saturating characteristics. Experimental and simulation results are presented that verify functionality and the high frequency characteristics of the proposed implementation.

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Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on  (Volume:5 )

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