Title :
A 50-MHz CMOS variable gain amplifier for magnetic data storage systems
Author :
Gomez, R. ; Abidi, A.A.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
A variable-gain amplifier (VGA) with a 35-dB range and 50-MHz bandwidth in 2-μm CMOS is described. The circuit occupies 0.8-mm2 active area, dissipates 150 mW, and embodies a semilogarthic relation between gain and control voltage. Although developed for use in magnetic storage read channels, this general-purpose block may be used in a variety of applications
Keywords :
CMOS integrated circuits; gain control; linear integrated circuits; wideband amplifiers; 150 mW; 2 micron; 50 MHz; CMOS; control voltage; magnetic data storage systems; semilogarthic relation; variable gain amplifier; Bandwidth; Circuit noise; Data storage systems; Gain; Magnetic heads; Magnetic noise; Noise level; Preamplifiers; Pulse amplifiers; Voltage control;
Journal_Title :
Solid-State Circuits, IEEE Journal of
