A high speed low noise CMOS MR preamplifier for disk drives

Jeremy Kuehlwein; Ramesh Harjani

A high speed low noise CMOS MR preamplifier for disk drives

Jeremy Kuehlwein, Ramesh Harjani

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

In this paper we present design for a high speed low noise preamplifier for use with magnetoresistive read elements in disk drive channels. The performance of the reader circuit is comparable with the more expensive current generation of BiCMOS MR preamplifiers. The measured results include a gain of 43dB, 3dB bandwidth of 273MHz, input-referred voltage noise is less than 0.57nV/√Hz, and input-referred current noise is less than 0.8pA/√Hz. The preamplifier has been implemented in a 0.8-μm CMOS process and occupies a die area of 1.78 × 1.78 mm².

Original language	English (US)
Article number	1471097
Pages (from-to)	66-69
Number of pages	4
Journal	European Solid-State Circuits Conference
State	Published - Dec 1 1999
Event	25th European Solid-State Circuits Conference, ESSCIRC 1999 - Duisburg, Germany Duration: Sep 21 1999 → Sep 23 1999

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title = "A high speed low noise CMOS MR preamplifier for disk drives",

abstract = "In this paper we present design for a high speed low noise preamplifier for use with magnetoresistive read elements in disk drive channels. The performance of the reader circuit is comparable with the more expensive current generation of BiCMOS MR preamplifiers. The measured results include a gain of 43dB, 3dB bandwidth of 273MHz, input-referred voltage noise is less than 0.57nV/√Hz, and input-referred current noise is less than 0.8pA/√Hz. The preamplifier has been implemented in a 0.8-μm CMOS process and occupies a die area of 1.78 × 1.78 mm2.",

author = "Jeremy Kuehlwein and Ramesh Harjani",

year = "1999",

month = dec,

day = "1",

language = "English (US)",

pages = "66--69",

journal = "European Solid-State Circuits Conference",

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note = "25th European Solid-State Circuits Conference, ESSCIRC 1999 ; Conference date: 21-09-1999 Through 23-09-1999",

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T1 - A high speed low noise CMOS MR preamplifier for disk drives

AU - Kuehlwein, Jeremy

AU - Harjani, Ramesh

PY - 1999/12/1

Y1 - 1999/12/1

N2 - In this paper we present design for a high speed low noise preamplifier for use with magnetoresistive read elements in disk drive channels. The performance of the reader circuit is comparable with the more expensive current generation of BiCMOS MR preamplifiers. The measured results include a gain of 43dB, 3dB bandwidth of 273MHz, input-referred voltage noise is less than 0.57nV/√Hz, and input-referred current noise is less than 0.8pA/√Hz. The preamplifier has been implemented in a 0.8-μm CMOS process and occupies a die area of 1.78 × 1.78 mm2.

AB - In this paper we present design for a high speed low noise preamplifier for use with magnetoresistive read elements in disk drive channels. The performance of the reader circuit is comparable with the more expensive current generation of BiCMOS MR preamplifiers. The measured results include a gain of 43dB, 3dB bandwidth of 273MHz, input-referred voltage noise is less than 0.57nV/√Hz, and input-referred current noise is less than 0.8pA/√Hz. The preamplifier has been implemented in a 0.8-μm CMOS process and occupies a die area of 1.78 × 1.78 mm2.

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M3 - Conference article

AN - SCOPUS:84893766492

SP - 66

EP - 69

JO - European Solid-State Circuits Conference

JF - European Solid-State Circuits Conference

SN - 1930-8833

M1 - 1471097

T2 - 25th European Solid-State Circuits Conference, ESSCIRC 1999

Y2 - 21 September 1999 through 23 September 1999

ER -

A high speed low noise CMOS MR preamplifier for disk drives

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