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Current mode automatic gain control
Author(s)
Arthansiri, Teerawat
Date Issued
January 1, 2008
Type
Article
Abstract
This paper presents a current mode automatic gain control (AGC) using a new current mode pseudo exponential-control variable gain amplifier (VGA). The VGA is based on the 4th order Taylor's series approximation to obtain a large control range. The circuit Is designed using CMOS technology and can operate with ± 1 V supply voltages. The control range is 25 dB with the maximum error less than 0.5 dB. The power dissipation is 3 mW.
Citation
Frequenz, 62(1-2), 25-29, 2008