Widely Programmable High-Frequency Active RC Filters in CMOS Technology


We propose a circuit technique that enables the realization of widely programmable high-frequency active RC filters in CMOS technology. A fifth-order Chebyshev ladder filter having a digitally programmable 3-dB bandwidth (from 44 to 300 MHz) is used as a vehicle to validate our ideas. The opamp uses feedforward compensation for achieving high dc gain and… (More)
DOI: 10.1109/TCSI.2008.2001759


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