Title :
Digitally controlled dB-linear CMOS variable gain amplifier
Author :
Elwan, H. ; El Adawi, A. ; Ismail, M. ; Olsson, H.K. ; Soliman, A.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
9/30/1999 12:00:00 AM
Abstract :
A novel technique to implement a digitally controlled precise dB-linear variable gain amplifier (VGA) in CMOS technology is proposed. The technique is used to realise a robust low power CMOS VGA circuit without component spread. Experimental results from a 1.2 μm CMOS chip are provided
Keywords :
CMOS integrated circuits; digital control; feedback amplifiers; gain control; low-power electronics; mixed analogue-digital integrated circuits; 1.2 micron; CMOS technology; CMOS variable gain amplifier; digitally controlled VGA; robust low power VGA circuit;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991193
