Title :
An 8-channel, head preamplifier for combination magnetoresistive read elements and inductive write elements
Author :
Swart, D.P. ; Schmerbeck, T.J.
Author_Institution :
IBM Corp., Rochester, MN, USA
Abstract :
A preamp IC that supports the first reported OEM (original equipment manufacturer) production use of magnetoresistive (MR) read-sense elements or heads in a rigid magnetic disk drive is described. Signal amplitudes, and therefore signal-to-noise ratios, are superior to those obtainable from previous inductive sense techniques at equivalent fly heights, magnet density, and linear velocities. The IC contains all required analog and digital functions for a complete read/write preamplifier.<>
Keywords :
hard discs; magnetic heads; magnetoresistive devices; preamplifiers; equivalent fly heights; head preamplifier; inductive sense techniques; inductive write elements; linear velocities; magnet density; magnetoresistive read elements; read/write preamplifier; rigid magnetic disk drive; signal-to-noise ratios; Analog integrated circuits; Digital integrated circuits; Disk drives; Magnetic devices; Magnetic heads; Magnetoresistance; Manufacturing; Preamplifiers; Production; Signal to noise ratio;
Conference_Titel :
Solid-State Circuits Conference, 1993. Digest of Technical Papers. 40th ISSCC., 1993 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0987-1
DOI :
10.1109/ISSCC.1993.280041
