Differential amplifier with improved frequency characteristic

Details Differential amplifier with improved frequency characteristic Differential amplifier with improved frequency characteristic

2006-06-06

2006-06-06

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including plural amplifier channels

C330S253000, C330S257000

Reexamination Certificate

active

07057463

ABSTRACT:
An amplifier for amplifying an input signal, having a plurality of amplifier stages each having a gain smaller than a target gain. The plurality of amplifier stages are connected in parallel and share the load of current amplification, and add output currents obtained from their respective amplifications to achieve the target gain as a whole.

REFERENCES:
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patent: 5432477 (1995-07-01), Nishiyama et al.
patent: 5701099 (1997-12-01), Shafir
patent: 5821824 (1998-10-01), Mentzer
patent: 6184750 (2001-02-01), Somerville
patent: 6400227 (2002-06-01), Goldfarb et al.
patent: 52-29141 (1977-03-01), None
patent: 4-165804 (1992-06-01), None
David Johns et al., “Analog Integrated Circuit Design,” John Wiley & Sons, Inc., 1997, p. 274.
International Search Report for International Application No. PCT/JP2004/007495 dated Sep. 14, 2004.

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