Differential amplifier stage

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7339433
APP PUB NO 20070216483A1
SERIAL NO

11389574

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Abstract

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A differential amplifier stage includes one active load circuit connected to a pair of cross-coupled transistors that produce a differential signal. The active load circuit controls the rise time of the differential signal. The differential amplifier stage also includes another active load circuit connected to the pair of cross-coupled transistors. The second active load circuit controls the fall time of the differential signal.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
APEX MICROTECHNOLOGY, INC.SCOTTSDALE, AZ8

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bhatacharya, Anindya Tucson, AZ 1 5
Cox, David F Tucson, AZ 15 201

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SGS-THOMSON MICROELECTRONICS S.R.L. (1)
* 5656969 Slew rate control and optimization of power consumption in a power stage 16 1995
 
NEC CORPORATION (2)
* 5506537 Logarithmic amplifying circuit based on the bias-offset technique 22 1994
* 5815039 Low-voltage bipolar OTA having a linearity in transconductance over a wide input voltage range 15 1996
 
RICOH ELECTRONIC DEVICES CO., LTD. (1)
* 7183852 Differential amplifying method and apparatus operable with a wide range input voltage 6 2005
 
TEXAS INSTRUMENTS INCORPORATED (1)
* 7176760 CMOS class AB folded cascode operational amplifier for high-speed applications 10 2005
 
MURATA MANUFACTURING CO., LTD. (1)
* 5515005 Operational amplifier 13 1994
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (4)
* 8086207 Linear transconductor for RF communications 4 2007
* 2008/0231,362 LINEAR TRANSCONDUCTOR FOR RF COMMUNICATIONS 6 2007
* 8385872 Linear transconductor for RF communications 2 2011
* 2012/0043,996 LINEAR TRANSCONDUCTOR FOR RF COMMUNICATIONS 0 2011
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
9221251 Adaptive level shifter for print nozzle amplifier 0 2012
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (2)
* 8554162 High efficiency power amplifier 1 2011
* 2013/0033,321 HIGH EFFICIENCY POWER AMPLIFIER 2 2011
 
ANALOG DEVICES, INC. (1)
8390491 Buffer to drive reference voltage 3 2011
 
MITSUMI ELECTRIC CO., LTD. (1)
* 2009/0174,387 Semiconductor Device 0 2008
* Cited By Examiner

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