Preamplifier common-mode noise rejection for two-dimensional magnetic recording
An apparatus for two-dimensional magnetic recording includes an array reader with a number of magnetoresistive read sensors configured to read data from a storage medium. The magnetoresistive read sensors have a number of connection terminals, with at least one of the connection terminals being shar...
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creator | Gleason Jeffrey A Straub Michael Fitzgerald David Wilson Ross S O'Brien Scott M Brenden Jason P |
description | An apparatus for two-dimensional magnetic recording includes an array reader with a number of magnetoresistive read sensors configured to read data from a storage medium. The magnetoresistive read sensors have a number of connection terminals, with at least one of the connection terminals being shared by more than one of the magnetoresistive read sensors. The apparatus also includes a number of low-noise amplifiers connected to the connection terminals, each configured to amplify a differential signal from a different one of the magnetoresistive read sensors. The apparatus also includes a number of impedance balancing networks connected to a subset of the connection terminals. |
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subjects | INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS |
title | Preamplifier common-mode noise rejection for two-dimensional magnetic recording |
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