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Class Information
Number: 330/288
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including current mirror amplifier
Description: Subject matter wherein an amplifier having a gain which is substantially independent of the individual common emitter forward current gains of its component transistor is utilized.










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
8692617 Balanced-input current-sensing differential amplifier Apr. 8, 2014
8644759 Offset cancellation for DC isolated nodes Feb. 4, 2014
8610614 CMOS current-mode folding amplifier Dec. 17, 2013
8598953 System and method for pre-charging a current mirror Dec. 3, 2013
8542065 Trans-impedance amplifier for optical receiver Sep. 24, 2013
8519794 Current mirror with low headroom and linear response Aug. 27, 2013
8514023 Accurate bias tracking for process variation and supply modulation Aug. 20, 2013
8502604 Layout method for differential amplifier and layout using the same Aug. 6, 2013
8487702 Transimpedance amplifier and method thereof Jul. 16, 2013
8487701 Circuit for amplifying a signal representing a variation in resistance of a variable resistance and corresponding sensor Jul. 16, 2013
8471631 Bias circuit, power amplifier, and current mirror circuit Jun. 25, 2013
8400219 Analog circuits having improved transistors, and methods therefor Mar. 19, 2013
8390491 Buffer to drive reference voltage Mar. 5, 2013
8380157 Up-conversion mixer with signal processing Feb. 19, 2013
8373491 Switched current mirror with good matching Feb. 12, 2013
8351493 Folding sequential adaptive equalizer Jan. 8, 2013
8334724 Open-loop transimpedance amplifier for infrared diodes Dec. 18, 2012
8289082 Circuit and method for adjusting an offset output current for an input current amplifier Oct. 16, 2012
8269562 Open-loop transimpedance amplifier for infrared diodes Sep. 18, 2012
8203383 Reducing the effect of bulk leakage currents Jun. 19, 2012
8183926 Electronic circuit output stage May. 22, 2012
8174320 Current switching system May. 8, 2012
8154346 Short circuits and power limit protection circuits Apr. 10, 2012
8150073 Impedance converting circuit and electronic device Apr. 3, 2012
8093952 Method and system for precise current matching in deep sub-micron technology Jan. 10, 2012
8072270 CMOS RF power amplifier with LDMOS bias circuit for large supply voltages Dec. 6, 2011
8073078 Split channel receiver with very low second order intermodulation Dec. 6, 2011
8058909 Transconductance amplifier Nov. 15, 2011
8022767 High-speed, multi-stage class AB amplifiers Sep. 20, 2011
8004362 Gate bias circuit Aug. 23, 2011
7999619 Class AB output stage Aug. 16, 2011
7994859 High-speed, multi-stage class AB amplifiers Aug. 9, 2011
7994861 System and method for pre-charging a current mirror Aug. 9, 2011
7948319 Current-mirroring systems and methods May. 24, 2011
7917120 RF mixer with inductive degeneration Mar. 29, 2011
7915958 Amplifier Mar. 29, 2011
7915948 Current mirror circuit Mar. 29, 2011
7911274 Variable transconductance circuit Mar. 22, 2011
7907012 Current mirror with low headroom and linear response Mar. 15, 2011
7898335 Amplifier circuit Mar. 1, 2011
7876158 High gain stacked cascade amplifier with current compensation to reduce gain compression Jan. 25, 2011
7863985 High frequency amplifier linearization technique Jan. 4, 2011
7843372 D/A conversion circuit Nov. 30, 2010
7812668 Multi-input operational amplifier and method for reducing input offset thereof Oct. 12, 2010
7804286 Multiple output amplifiers and comparators Sep. 28, 2010
7795980 Power amplifiers having improved protection against avalanche current Sep. 14, 2010
7777573 Operational amplifier having adjustable bias current and related source driver of display thereof Aug. 17, 2010
7772926 Setting the DC operating current of a rail-to-rail output stage of an op-amp Aug. 10, 2010
7746120 Voltage to current converter Jun. 29, 2010
7724092 Dual-path current amplifier May. 25, 2010

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