A 0.55 nV//spl radic/(Hz) gigabit fully-differential CMOS preamplifier for MR/GMR read application

Author

Zhiliang Zheng ; Lam, S. ; Sutardja, S.

Author_Institution

Marvell Semicond. Inc., Sunnyvale, CA, USA

Volume

1

fYear

2002

fDate

7-7 Feb. 2002

Firstpage

64

Abstract

A low-noise Gb fully differential preamp in 0.25 /spl mu/m CMOS has a variable gain with constant 850 MHz bandwidth, and has a variable bandwidth with constant gain. Noise is <0.55 nV//spl radic/(Hz). The power consumption is 600 mW. The die of a 4-channel IC is <4.2 mm/sup 2/.

Keywords

CMOS analogue integrated circuits; differential amplifiers; disc drives; giant magnetoresistance; hard discs; integrated circuit measurement; integrated circuit noise; magnetic heads; magnetoresistive devices; preamplifiers; 0.25 micron; 600 mW; 850 MHz; GMR read application; MR read application; constant bandwidth; constant gain; die size; disk drive signal processing technology; fully-differential CMOS preamplifier; low-noise differential preamplifier; noise; power consumption; variable bandwidth; variable gain; Bandwidth; CMOS technology; Coupling circuits; Disk drives; Gain; Logic arrays; Magnetic heads; Noise figure; Preamplifiers; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2002. Digest of Technical Papers. ISSCC. 2002 IEEE International

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-7335-9

Type

conf

DOI

10.1109/ISSCC.2002.992940

Filename

992940