High-speed low-capacitive load common mode feedback

Details High-speed low-capacitive load common mode feedback High-speed low-capacitive load common mode feedback

2005-02-08

2005-02-08

Tran, Sinh (Department: 2651)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

C360S046000

Reexamination Certificate

active

06853510

ABSTRACT:
A variable gain amplifier to output a differential output signal includes an input circuit to input a differential input signal, a buffer circuit to buffer the differential output signal to a common mode voltage, a compensation circuit to compensate the differential output signal to prevent variation in the differential output signal, and a comparison circuit to compare the common mode voltage to a predetermined voltage and to adjust the common mode voltage to equal the predetermined voltage.

REFERENCES:
patent: 4833418 (1989-05-01), Quintus et al.
patent: 5898341 (1999-04-01), Miyashita
patent: 5999056 (1999-12-01), Fong
patent: 6011437 (2000-01-01), Sutardja et al.
patent: 6020786 (2000-02-01), Ashby
patent: 6028478 (2000-02-01), Seremeta et al.
patent: 6208209 (2001-03-01), Ng
patent: 6359743 (2002-03-01), Patti et al.

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