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Class Information
Number: 330/261
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having particular biasing arrangement
Description: Subject matter with specific details or distinctive characteristics of the biasing means applied to the amplifying device.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
8692616 Operational amplifier, analog arithmetic circuit, and analog to digital converter Apr. 8, 2014
8692618 Positive and negative voltage input operational amplifier set Apr. 8, 2014
8686889 Analog frontend for CCD/CIS sensor Apr. 1, 2014
8674755 Differential source follower having 6dB gain with applications to WiGig baseband filters Mar. 18, 2014
8674767 Body biasing device and operational amplifier thereof Mar. 18, 2014
8665021 Apparatus and methods for amplifier power supply control Mar. 4, 2014
8659322 Memory having a latching sense amplifier resistant to negative bias temperature instability and method therefor Feb. 25, 2014
8653892 Systematic intermodulation distortion calibration for a differential LNA Feb. 18, 2014
8649749 RF receiver with voltage sampling Feb. 11, 2014
8644759 Offset cancellation for DC isolated nodes Feb. 4, 2014
8633770 Current sense amplifier having bipolar common mode input range Jan. 21, 2014
8624672 Integrated circuit Jan. 7, 2014
8614603 Auto leveling receiver Dec. 24, 2013
8598506 Solid-state image pickup apparatus and driving method therefor Dec. 3, 2013
8600315 Method and system for a configurable front end Dec. 3, 2013
8593221 Methods and circuits for common mode stability and bandwidth broadening in transistor amplifiers Nov. 26, 2013
8576007 High speed amplifier Nov. 5, 2013
8542038 Source driver and receiver thereof Sep. 24, 2013
8542063 Adaptive amplification circuit Sep. 24, 2013
8536947 Class AB amplifier with resistive level-shifting circuitry Sep. 17, 2013
8531242 Operational amplifier with overdriving circuit and method for same Sep. 10, 2013
8502603 Output common mode voltage stabilizer over large common mode input range in a high speed differential amplifier Aug. 6, 2013
8493150 Class-AB output stage Jul. 23, 2013
8487695 Differential source follower having 6dB gain with applications to WiGig baseband filters Jul. 16, 2013
8476973 Switch device and layout design method for switch device Jul. 2, 2013
8471635 Bias circuit and amplifier providing constant output current for a range of common mode inputs Jun. 25, 2013
8471636 Differential pair with constant offset Jun. 25, 2013
8456234 Bias current control method and driving circuit for operational amplifier Jun. 4, 2013
8456337 System to interface analog-to-digital converters to inputs with arbitrary common-modes Jun. 4, 2013
8436682 Fourth-order electrical current source apparatus, systems and methods May. 7, 2013
8421536 Apparatus and methods for electronic amplification Apr. 16, 2013
8416969 Amplifier circuit Apr. 9, 2013
8405458 Current mirror with low headroom and linear response Mar. 26, 2013
8400218 Current mode power amplifier providing harmonic distortion suppression Mar. 19, 2013
8395446 Dual-mode amplifier Mar. 12, 2013
8390371 Tunable transconductance-capacitance filter with coefficients independent of variations in process corner, temperature, and input supply voltage Mar. 5, 2013
8390379 Amplifier input stage and slew boost circuit Mar. 5, 2013
8384055 Output circuit, light-receiver circuit using the same, and photocoupler Feb. 26, 2013
8385877 Fully integrated compact cross-coupled low noise amplifier Feb. 26, 2013
8378749 Systems and methods for adaptive bias circuits for a power amplifier Feb. 19, 2013
8378747 Differential amplifier circuit, operational amplifier including difference amplifier circuit, and voltage regulator circuit Feb. 19, 2013
8358991 Transconductance enhanced RF front-end Jan. 22, 2013
8350622 Output common mode voltage stabilizer over large common mode input range in a high speed differential amplifier Jan. 8, 2013
8350624 Amplifiers and related biasing methods and devices Jan. 8, 2013
8344804 Common-mode feedback circuit Jan. 1, 2013
8339296 Amplifying circuit and analog-digital converting circuit including same Dec. 25, 2012
8332024 Low-power analog architecture for brain-machine interfaces Dec. 11, 2012
8319554 Amplifier with start-up common mode feedback Nov. 27, 2012
8319562 System and method for amplifying a signal using multiple amplification stages sharing a common bias current Nov. 27, 2012
8310278 Voltage detection device Nov. 13, 2012

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