Disk drive interface combining a magneto-resistive read and inductive write circuits
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United States of America Patent
Stats
-
Jul 4, 1995
Grant Date -
N/A
app pub date -
Oct 18, 1991
filing date -
Oct 18, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A single integrated circuit chip provides an interface to both magneto-resistive read elements and inductive write elements of a plurality of read/write heads of a disk drive mass data storage system. Separate multiplexers and current sources are used for the read and write channels. The read element of a head selected by one of the multiplexers is preamplified on the chip. A write driver circuit is also provided, being connected to a write element of a head selected by the other of the multiplexers.
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