Universal biquad filters using low-voltage current mirrors
作者： Costas Laoudias , Costas Psychalinos
DOI: 10.1007/S10470-010-9462-Z
关键词: Low voltage 、 Engineering 、 Filter (video) 、 Digital biquad filter 、 Q factor 、 Electronic engineering 、 Analogue filter 、 Capacitor 、 Current mirror 、 Resistor
摘要: Novel Single Input Multiple Output (SIMO) and (MISO) current-mode universal biquad topologies are introduced in this paper. The proposed have been realized by employing low-voltage current mirrors as active elements. As a result, an absence of resistors is achieved the derived filter topologies; also only grounded capacitors required. resonant frequency filters can be electronically controlled appropriate dc current. In addition, offer feature orthogonal adjustment between Q factor. behavior evaluation has performed through test chip prototype fabricated AMS 0.35 μm CMOS technology.
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