ClassID:

220060

H03F2203/45511 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the feedback circuit [FBC] comprising one or more transistor stages, e.g. cascaded stages of the dif amp, and being coupled between the loading circuit [LC] and the input circuit [IC]

Recent Application in this class:
#1
20240297719
2024-09-05

OPTO-ELECTRONIC ASSEMBLIES

#2
20200366260
2020-11-19

Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff

#3
20200244229
2020-07-30

Differential amplifier circuit

#4
20190288654
2019-09-19

Amplifier with hysteresis

#5
20190267952
2019-08-29

Miller compensation circuit and electronic circuit

#6
20190229689
2019-07-25

Method and system for a feedback transimpedence amplifier with sub-40KHZ low-frequency cutoff

#7
20190229683
2019-07-25

Methods of adjusting gain error in instrumentation amplifiers

#8
20190132163
2019-05-02

DC offset cancellation and crosspoint control circuit

#9
20190052230
2019-02-14

Differential amplifier circuit

#10
20180323762
2018-11-08

Dynamic correction of gain error in current-feedback instrumentation amplifiers

#11
20180323748
2018-11-08

Methods of adjusting gain error in instrumentation amplifiers

#12
20170338782
2017-11-23

Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff

#13
20170070209
2017-03-09

Pseudo resistance circuit and charge detection circuit

#14
20160373078
2016-12-22

Method and system for a feedback transimpedance amplifier with sub-40KHZ low-frequency cutoff

#15
20160164477
2016-06-09

Electric amplifier circuit for amplifying an output signal of a microphone

#16
20150279467
2015-10-01

Amplifier stage

#17
20150270815
2015-09-24

Current feedback output circuit

#18
20150171807
2015-06-18

Differential amplifier

#19
20150091647
2015-04-02

Reducing a settling time after a slew condition in an amplifier

#20
20150084688
2015-03-26

Baseband processing circuitry

#21
20150048882
2015-02-19

Apparatus and method for testing of successful operation of transimpedance amplifiers

#22
20150022268
2015-01-22

DC offset cancellation circuit

#23
20140340151
2014-11-20

Transconductance amplifier

#24
20140300417
2014-10-09

Amplifiers with boosted or deboosted source degeneration inductance

#25
20140291489
2014-10-02

Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff

#26
20140167850
2014-06-19

Current feedback output circuit

#27
20130266156
2013-10-10

Sensor amplifier arrangement and method for amplification of a sensor signal

#28
20130141057
2013-06-06

Current source with active common mode rejection

#29
20120286874
2012-11-15

Positive feedback common gate low noise amplifier

#30
20120249234
2012-10-04

Receiver

#31
20120188009
2012-07-26

Apparatus and method for amplification with high front-end gain in the presence of large DC offsets

#32
20120178391
2012-07-12

Adjustable circuit architecture

#33
20120169422
2012-07-05

Amplifier with non-linear current mirror

#34
20120112798
2012-05-10

Filter comprising a current-to-voltage converter

#35
20120086510
2012-04-12

Common-mode feedback amplifier

#36
20120068769
2012-03-22

High-frequency differential amplifier circuit

#37
20120007681
2012-01-12

Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff

#38
20110221526
2011-09-15

Method and apparatus for a gain control circuit via a high frequency signal

#39
20110215870
2011-09-08

Burst mode amplifier

#40
20110128073
2011-06-02

Semiconductor integrated circuit

#41
20110115559
2011-05-19

System for reducing distortion in an electronic circuit using nonlinear feedback

#42
20110102082
2011-05-05

Area and power efficient, high swing and monolitihic ground centered headphone amplifier circuit operable on a low voltage

#43
20110096186
2011-04-28

Fully-differential amplifier, photoelectric conversion apparatus including fully-differential amplifier, and image-pickup system

#44
20110043288
2011-02-24

Rail-to-rail Miller compensation method without feed forward path

#45
20110032031
2011-02-10

Amplifier circuit and light receiving amplifier circuit using the same

#46
20100264987
2010-10-21

Amplifier with bias stabilizer

#47
20100141340
2010-06-10

Method and apparatus for a high bandwidth amplifier with wide band peaking

#48
20100060324
2010-03-11

Voltage/current conversion circuit

#49
20100052791
2010-03-04

Amplifier circuit

#50
20090284316
2009-11-19

Amplifier device

#51
20090079499
2009-03-26

Differential Low Noise Amplifier (LNA) With Common Mode Feedback And Gain Control

#52
20090027124
2009-01-29

Level-Shifting Buffer

#53
20090027112
2009-01-29

CONTROLLABLE PRECISION TRANSCONDUCTANCE

#54
20080290940
2008-11-27

Differential low noise amplifier (LNA) with common mode feedback and gain control

#55
20080272839
2008-11-06

Operation amplifier and circuit for providing dynamic current thereof

#56
20080220735
2008-09-11

Frequency selective amplifier with wide-band impedance and noise matching

#57
20080218254
2008-09-11

Reduced jitter amplification methods and apparatuses

#58
20080169875
2008-07-17

Level-shifting differential amplifier

#59
20080074197
2008-03-27

Circuit for providing a signal boost

#60
20080058030
2008-03-06

Transmitter for transmitting a transmission signal

#61
20080036537
2008-02-14

Wide-band low-noise CMOS amplifier

#62
20070296497
2007-12-27

Amplifier circuit with cross-coupled cascode transistors

#63
20070279131
2007-12-06

Variable gain amplifier and differential amplifier

#64
20070273441
2007-11-29

Amplifier

#65
20070222510
2007-09-27

System and method for operating a feedback network

#66
20070200623
2007-08-30

Amplifier, and step-down regulator and operational amplifier using the amplifier

#67
20070194850
2007-08-23

Dynamically compensated operational amplifier

#68
20070164826
2007-07-19

Gain controllable low noise amplifier and wireless communication receiver having the same

#69
20070115050
2007-05-24

Circuit configuration having a feedback, fully-differential operational amplifier

#70
20070109173
2007-05-17

Resistor ladder interpolation for subranging ADC

#71
20070024367
2007-02-01

Operational amplifier and constant-current generation circuit using the same

#72
20060164172
2006-07-27

Radiofrequency amplifier device, in particular for cellular mobile telephone

#73
20060119431
2006-06-08

Differential operational amplifier

#74
20060044058
2006-03-02

Method and circuit for facilitating control of AC coupling in an amplifier circuit

#75
20060033570
2006-02-16

Differential amplifier

#76
20060033560
2006-02-16

Variable time constant circuit and filter circuit using the same

#77
20060028273
2006-02-09

Gain-boosted opamp with capacitor bridge connection

#78
20060028260
2006-02-09

Logarithmic amplifier with base and emitter in feedback path

#79
20050162299
2005-07-28

Resistor ladder interpolation for subranging ADC