350 MHz opamp-RC filter in 0.18 μm CMOS

A 350 MHz fifth-order elliptic opamp-RC filter demonstrates that opamp-based filters need not have bandwidth disadvantages compared to transconductor-based filters. The filter, fabricated in standard digital 0.18 /spl mu/m CMOS with 1.8 V V/sub DD/, achieves 0.5 Vp-p signal swing at -40 dB THD.

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