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A wide-band CMOS read amplifier for magnetic data storage systems

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2 Author(s)
Pan, T.-W. ; Silicon Systems Inc., Tustin, CA, USA ; Abidi, A.A.

Circuit techniques for a CMOS amplifier suitable for read waveform signal processing in high-speed disk drives are described. A 30-MHz low-noise preamplifier with a gain of 100 was designed in 3-μm CMOS, capable of being driven by an inductive source, and producing an equivalent input noise voltage spectral density of 2 nV/√Hz. This, with other recent developments, makes it possible to conceive of entirely CMOS read/write signal-processing ICs

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:27 ,  Issue: 6 )