A Baseband Gain-Controlled Amplifier with a Linear-in-dB Gain Range from 14 dB to 76 dB and a Fixed Corner Frequency DC Offset Canceler

Tadashi ARAI, Tetsuro ITAKURA

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Summary :

A linear-in-dB gain-control amplifier for direct conversion systems employs linearized transconductors in a core amp, a dc offset canceler, and a gain control circuit. The offset compensation circuit achieves a constant corner frequency over a gain range of 14 to 76 dB by simultaneous tuning of the transconductors.

Publication
IEICE TRANSACTIONS on Electronics Vol.E87-C No.6 pp.909-914
Publication Date
2004/06/01
Publicized
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Type of Manuscript
Special Section PAPER (Special Section on Analog Circuit and Device Technologies)
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