Title:
MULTISTAGE AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2014/122715
Kind Code:
A1
Abstract:
Provided is a multistage amplifier having increased bandwidth with minimized gain reduction. The present invention is provided with a plurality of differential amplifiers connected in series, and a direct-current component limiter for cutting off the direct-current component of an input signal, the direct-current component limiter being disposed among the plurality of differential amplifiers, the transistor size of a first differential amplifier disposed immediately after the direct-current component limiter being equal to or greater than the transistor size of a second differential amplifier disposed before the second stage of the direct-current component limiter.
Inventors:
KITAMURA RYO
Application Number:
PCT/JP2013/007600
Publication Date:
August 14, 2014
Filing Date:
December 25, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H03F3/68; H03F1/42; H03F3/45
Foreign References:
| JP2006352401A | 2006-12-28 | |||
| JP2007312001A | 2007-11-29 | |||
| JPH08125504A | 1996-05-17 | |||
| JPH10284956A | 1998-10-23 | |||
| JP2004336706A | 2004-11-25 |
Attorney, Agent or Firm:
HASHIMOTO, Kimihide et al. (JP)
Kimihide Hashimoto (JP)
Kimihide Hashimoto (JP)
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