Title :
Current-mode pseudo-exponential-control variable-gain amplifier using fourth-order Taylor´s series approximation
Author :
Arthansiri, T. ; Kasemsuwan, V.
Author_Institution :
Dept. of Electron., KMITL, Bangkok, Thailand
fDate :
3/30/2006 12:00:00 AM
Abstract :
A new current-mode pseudo exponential-control variable-gain amplifier (VGA) using CMOS technology is proposed. The technique is based on the fourth-order Taylor´s series approximation. The VGA exhibits a linear-dB controllable output range of 30 dB with maximum error less than 0.5 dB.
Keywords :
CMOS analogue integrated circuits; amplifiers; current-mode circuits; series (mathematics); 30 dB; CMOS technology; current-mode variable-gain amplifier; fourth-order Taylor series approximation; pseudo-exponential-control variable-gain amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20060083
