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Class Information
Number: 330/277
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including field effect transistor
Description: Subject matter wherein a field effect transistor (FET) is utilized in the amplifier circuit.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Patent Number Title Of Patent Date Issued
7420420 FET bias circuit Sep. 2, 2008
7420417 Two-port dual-gate HEMT for discrete device application Sep. 2, 2008
7391269 Amplifying circuit Jun. 24, 2008
7368993 Transconductance circuit with improved linearity May. 6, 2008
7368994 Class AB enhanced transconductance source follower May. 6, 2008
7368995 Power amplifier with active bias circuit May. 6, 2008
7349681 Self-biased high-speed receiver Mar. 25, 2008
7345545 Enhancement mode transceiver and switched gain amplifier integrated circuit Mar. 18, 2008
7345528 Method and apparatus for improved clock preamplifier with low jitter Mar. 18, 2008
7342453 Cascode circuit Mar. 11, 2008
7340229 High frequency amplification circuit and mobile communication terminal using the same Mar. 4, 2008
7301401 Low noise op amp Nov. 27, 2007
7295067 Current source circuit and differential amplifier Nov. 13, 2007
7247830 Output amplifier for solid-state imaging device Jul. 24, 2007
7248120 Stacked transistor method and apparatus Jul. 24, 2007
7239205 High frequency amplifier circuit and mobile communication terminal using the same Jul. 3, 2007
7230489 System and apparatus for receiver equalization Jun. 12, 2007
7227414 Apparatus for receiver equalization Jun. 5, 2007
7227420 Transimpedance amplifier with a high gain/bandwidth product for conversion of a DAC output current Jun. 5, 2007
7224232 RF power amplifier and method for packaging the same May. 29, 2007
7221217 Self-bias and digitally tunable conduction angle circuits for a differential RF non-linear power amplifier employing low-voltage transistors May. 22, 2007
7215193 Method and apparatus for limiting power amplifier voltage excursions May. 8, 2007
7212070 Circuit and method of reducing noise in an RF power amplifier May. 1, 2007
7199669 Dual gate cascade amplifier Apr. 3, 2007
7199663 Use of analog-valued floating-gate transistors for parallel and serial signal processing Apr. 3, 2007
7193469 System and method for testing gate oxide of an amplifier Mar. 20, 2007
7187238 Circuit for adjusting the operating point of multiple gate field effect transistors Mar. 6, 2007
7187237 Use of analog-valued floating-gate transistors for parallel and serial signal processing Mar. 6, 2007
7183853 Feedback amplifier having amplified signal path and feedback signal path separated Feb. 27, 2007
7167053 Integrated circuit amplifier device and method using FET tunneling gate current Jan. 23, 2007
7157972 Common gate with resistive feed-through low noise amplifier Jan. 2, 2007
7154329 Method and apparatus for compensating amplifier output for temperature and process variations Dec. 26, 2006
7151412 Sliding cascode circuit Dec. 19, 2006
7145394 High frequency power amplifier module, and wireless communication system Dec. 5, 2006
7138875 Cascoded power amplifier, particularly for use in radio frequency Nov. 21, 2006
7135925 Adaptive bias scheme for high-voltage compliance in serial links Nov. 14, 2006
7119616 Method and apparatus for a fully differential amplifier output stage Oct. 10, 2006
7113042 Low noise op amp Sep. 26, 2006
7109801 Low gate oxide stress power amplifier Sep. 19, 2006
7102674 Charge transfer device Sep. 5, 2006
7088393 Output-compensated buffers with source-follower input structure, methods of operating same, and image capture devices using same Aug. 8, 2006
7084704 Variable gain amplifier system Aug. 1, 2006
7064611 I.sub.DSS RF amplifier Jun. 20, 2006
7061324 Use of analog-valued floating-gate transistors for parallel and serial signal processing Jun. 13, 2006
7061321 Low impedance read amplifier for magnetoresistive head Jun. 13, 2006
7030701 Transimpedance amplification apparatus with source follower structure Apr. 18, 2006
7012468 Circuit configuration and method for reducing the 1/f noise of MOSFETs Mar. 14, 2006
6995612 Circuit for reducing current mirror mismatch due to gate leakage current Feb. 7, 2006
6992530 RF amplifier with improved impedance matching Jan. 31, 2006
6967528 Variable gain amplifier Nov. 22, 2005

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