Digitally programmable decibel-linear CMOS VGA for low-power mixed-signal applications

A new technique for realizing CMOS digitally-controlled decibel-linear variable gain amplifier (VGA) circuits is described. CMOS VGA circuits employing the proposed technique are then given. Besides being effective and simple to use from a system point of view, the VGA circuits offer a stable gain c...

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Veröffentlicht in:	IEEE transactions on circuits and systems. 2, Analog and digital signal processing Analog and digital signal processing, 2000-05, Vol.47 (5), p.388-398
Hauptverfasser:	Elwan, H.O., Ismail, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	CMOS digital integrated circuits CMOS technology converter current division network current sensed op amp decibel-linear Digital control Digital signal processing chips Dynamic range Feedback loop Filters Gain control Signal processing variable gain amplifier Voltage
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