A 1-V CMOS switched-opamp switched-capacitor pseudo-2-path filter

A modified switched-opamp technique is proposed to enable switched-capacitor (SC) circuits to operate at 1 V with the opamp fully functional in all phases. A 1-V fully differential two-switchable-output-pair operational amplifier has been designed for the proposed technique, which is then employed i...

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Veröffentlicht in:	IEEE journal of solid-state circuits 2001-01, Vol.36 (1), p.14-22
Hauptverfasser:	Cheung, V.S.-L., Luong, H.C., Wing-Hung Ki
Format:	Artikel
Sprache:	eng
Schlagworte:	Band pass filters Chip formation Chips Circuits Clocks CMOS CMOS process CMOS technology Differential amplifiers Dynamic voltage scaling Low voltage Noise levels Operational amplifiers Phases Power semiconductor switches Quality factor Switching circuits
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