ClassID:

219363

H03F3/45188 - page 2 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit; Long tailed pairs Non-folded cascode stages

Recent Application in this class:
#301
20080122538
2008-05-29

Wideband active balun circuit based on differential amplifier

#302
20080106335
2008-05-08

Differential circuit

#303
20080088373
2008-04-17

Differential amplifier using body-source cross coupling

#304
20080079497
2008-04-03

Low noise amplifier with embedded filter and related wireless communication unit

#305
20080079474
2008-04-03

Signal conditioning circuit, a comparator including such a conditioning circuit and a successive approximation converter including such a circuit

#306
20080074228
2008-03-27

Low mutual inductance matched inductors

#307
20080074190
2008-03-27

Scheme for improving settling behavior of gain boosted fully differential operational amplifier

#308
20080074187
2008-03-27

Multi-gain amplifier with input impedance control

#309
20080061878
2008-03-13

Differential amplifier and sampling and holding circuit

#310
20080057883
2008-03-06

Power control for a dual mode transmitter

#311
20080055005
2008-03-06

Feedback-type variable gain amplifier and method of controlling the same

#312
20080048780
2008-02-28

Linearization apparatus of triode region type operational transconductance amplifier

#313
20080048779
2008-02-28

ACTIVE EMI SUPPRESSION CIRCUIT

#314
20080036536
2008-02-14

System and method for linearizing a CMOS differential pair

#315
20080036532
2008-02-14

Transmitter power amplifier working at different power supplies

#316
20080032661
2008-02-07

Circuit with Q-enhancement cell having programmable bias current slope

#317
20080030279
2008-02-07

Circuit with Q-enhancement cell having feedback loop

#318
20080024219
2008-01-31

Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit

#319
20080018401
2008-01-24

Variable gain amplifier with wide gain variation and wide bandwidth

#320
20080009255
2008-01-10

Peak detector and fixed gain amplifier circuit for automatic gain control and variable gain amplifier circuit

#321
20070296501
2007-12-27

Variable-gain amplifier

#322
20070296497
2007-12-27

Amplifier circuit with cross-coupled cascode transistors

#323
20070290754
2007-12-20

Push-pull amplifier and method for low noise amplification

#324
20070275676
2007-11-29

DAC based switching power amplifier

#325
20070270111
2007-11-22

Dual power mode transmitter

#326
20070268070
2007-11-22

Power amplifier transmission line transformer

#327
20070247208
2007-10-25

Offset correcting method, offset correcting circuit, and electronic volume

#328
20070229154
2007-10-04

Differential amplifier with active post-distortion linearization

#329
20070222514
2007-09-27

Differential difference amplifier

#330
20070217544
2007-09-20

Power management in a data acquisition system

#331
20070216481
2007-09-20

Low noise amplifiers for low-power impulse radio ultra-wideband receivers

#332
20070213027
2007-09-13

Integrated low noise amplifier

#333
20070205841
2007-09-06

Voltage-controlled current source and variable-gain amplifier

#334
20070194849
2007-08-23

Method for nullifying temperature dependence and circuit therefor

#335
20070188240
2007-08-16

Ultra-wideband constant gain CMOS amplifier

#336
20070159247
2007-07-12

CMOS amplifier of filter for ultra wideband application and method of the same

#337
20070152752
2007-07-05

Bias circuit

#338
20070146008
2007-06-28

Semiconductor circuit comprising vertical transistor

#339
20070139114
2007-06-21

Gain variable circuit and automatic gain control amplifier using the same

#340
20070120605
2007-05-31

Integrated switchless programmable attenuator and low noise amplifier

#341
20070120604
2007-05-31

Low voltage low power class A/B output stage

#342
20070120603
2007-05-31

Techniques for designing wide band low noise amplifiers

#343
20070096773
2007-05-03

Sample and hold circuit with multiple channel inputs, and analog-digital converter incorporating the same

#344
20070090880
2007-04-26

Operational amplifier for outputting high voltage output signal

#345
20070085617
2007-04-19

Amplifier arrangement for ultra-wideband applications and method

#346
20070077909
2007-04-05

Reducing flicker noise in two-stage amplifiers

#347
20070077908
2007-04-05

Fully integrated tuner architecture

#348
20070075784
2007-04-05

Radio frequency power amplifier

#349
20070075776
2007-04-05

Output driver with common mode feedback

#350
20070069818
2007-03-29

Multilevel power amplifier architecture using multi-tap transformer

#351
20070058703
2007-03-15

Current mode phase shifter, mixer and amplifier

#352
20070030077
2007-02-08

Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design

#353
20070024377
2007-02-01

Impedance matching techiques for multi-band or wideband RF amplifiers and associated amplifier designs

#354
20070024368
2007-02-01

Differential amplifiers with enhanced gain and dynamic range

#355
20070018727
2007-01-25

Variable gain amplifier and wireless communication apparatus including the same

#356
20070013433
2007-01-18

Temperature compensation for internal inductor resistance

#357
20070001769
2007-01-04

Ultra-wideband constant gain CMOS amplifier

#358
20070001768
2007-01-04

Broadband low noise amplifier and RF signal amplification method of the same

#359
20060267689
2006-11-30

Parallel power amplifier apparatus, method, and system

#360
20060255837
2006-11-16

Sense amplifier and electronic apparatus using the same

#361
20060250183
2006-11-09

Systems and methods for driving an output transistor

#362
20060246859
2006-11-02

High output power radio frequency integrated circuit

#363
20060238248
2006-10-26

Differential inductor based low noise amplifier

#364
20060229046
2006-10-12

Variable gain amplifier for low voltage applications

#365
20060229038
2006-10-12

Wireless transmitter having multiple power amplifier drivers (PADs) that are selectively biased to provide substantially linear magnitude and phase responses

#366
20060220748
2006-10-05

Use of a thick oxide device as a cascode for a thin oxide transconductance device in MOSFET technology and its application to a power amplifier design

#367
20060217090
2006-09-28

Linear and non-linear dual mode transmitter

#368
20060202760
2006-09-14

Controllable amplifier and the use thereof

#369
20060202759
2006-09-14

Transistor biasing independent of inductor voltage drop

#370
20060202758
2006-09-14

Amplifier with increased bandwidth and method thereof

#371
20060202751
2006-09-14

Controllable amplifier and method for amplifying a signal

#372
20060186957
2006-08-24

Noise generator

#373
20060181349
2006-08-17

CMOS variable gain amplifier for controlling dB linear gain

#374
20060176104
2006-08-10

Ultra wideband filter based on a pair of cross-coupled transistors

#375
20060170500
2006-08-03

Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier

#376
20060170497
2006-08-03

Gain variable amplifier

#377
20060164171
2006-07-27

Method for transforming output signals of a low-noise amplifier of a wireless transceiver

#378
20060145728
2006-07-06

System and method for high frequency, high output swing buffers

#379
20060139096
2006-06-29

Apparatus and method for biasing cascode devices in a differential pair using the input, output, or other nodes in the circuit

#380
20060131701
2006-06-22

Use of a down-bond as a controlled inductor in integrated circuit applications

#381
20060119430
2006-06-08

Adaptive bias scheme for high-voltage compliance in serial links

#382
20060097792
2006-05-11

Variable gain amplifier

#383
20060097786
2006-05-11

Low noise and high gain low noise amplifier

#384
20060091958
2006-05-04

Multilevel power amplifier architecture using multi-tap transformer

#385
20060077584
2006-04-13

Low power low noise amplifier for a magnetoresistive sensor

#386
20060071712
2006-04-06

Variable gain amplifier

#387
20060068723
2006-03-30

Linear high powered integrated circuit amplifier

#388
20060061415
2006-03-23

Low voltage broadband gain cell

#389
20060057990
2006-03-16

Gain boosting RF gain stage with cross-coupled capacitors

#390
20060055445
2006-03-16

Multi-standard amplifier

#391
20060050585
2006-03-09

Device for setting up a write current in an MRAM type memory and memory comprising

#392
20060049872
2006-03-09

Non-match power amplifier and method for increased output 1 dB compression point

#393
20060049852
2006-03-09

Sense amplifier with low common mode differential input signal

#394
20060033584
2006-02-16

Variable inductor, oscillator including the variable inductor and radio terminal comprising this oscillator, and amplifier including the variable inductor and radio terminal comprising this amplifier

#395
20060033562
2006-02-16

MOSFET amplifier having feedback controlled transconductance

#396
20060017598
2006-01-26

Current mode analog-to-digital converter

#397
20060012429
2006-01-19

Self biased differential amplifier

#398
20060006950
2006-01-12

Power amplifier utilizing high breakdown voltage circuit topology

#399
20050285678
2005-12-29

Differential amplifier with adaptive biasing and offset cancellation

#400
20050280467
2005-12-22

Monolithic CMOS differential LNA with enhanced linearity

#401
20050264323
2005-12-01

SOI sense amplifier with cross-coupled bit line structure

#402
20050258901
2005-11-24

System and method for linearizing a CMOS differential pair

#403
20050248408
2005-11-10

Ultra-wideband constant gain CMOS amplifier

#404
20050248402
2005-11-10

Dual-band CMOS front-end with two gain modes

#405
20050248396
2005-11-10

VGA-CTF combination cell for 10 Gb/s serial data receivers

#406
20050200420
2005-09-15

Supply circuit for power amplifier drivers

#407
20050195039
2005-09-08

Radio frequency variable gain amplifier with linearity insensitive to gain

#408
20050189995
2005-09-01

Multi-primary distributed active transformer amplifier power supply and control

#409
20050186930
2005-08-25

Adaptive radio transceiver with offset PLL with subsampling mixers

#410
20050184813
2005-08-25

Multi-primary distributed active transformer oscillator power supply and control

#411
20050174175
2005-08-11

Amplifying circuit with adjustable amplification and transmitter system comprising such an amplifying circuit

#412
20050162232
2005-07-28

Operational amplifier including low DC gain wideband circuit and high DC gain narrowband gain circuit

#413
20050153677
2005-07-14

System and method for on-chip filter tuning

#414
20050140445
2005-06-30

Operational transconductance amplifier with DC offset elimination and low mismatch

#415
20050140442
2005-06-30

Offset-compensated self-biased differential amplifier

#416
20050134381
2005-06-23

Common mode feedback circuit for fully differential two-stage operational amplifiers

#417
20050116761
2005-06-02

Clamping circuit

#418
20050116760
2005-06-02

Enhancing SNR and throughput performance of integrated circuits

#419
20050107055
2005-05-19

Integrated switchless programmable attenuator and low noise amplifier

#420
20050104661
2005-05-19

Differential amplifier

#421
20050090223
2005-04-28

Use of a down-bond as a controlled inductor in integrated circuit applications

#422
20050090209
2005-04-28

High linearity, high efficiency power amplifier with DSP assisted linearity optimization

#423
20050088263
2005-04-28

High performance switch for switched inductor tuned RF circuit

#424
20050088262
2005-04-28

Tuning RF circuits using switched inductors provided in a monolithic integrated circuit

#425
20050088242
2005-04-28

Use of a thick oxide device as a cascode for a thin oxide transcoductance device in MOSFET technology and its application to a power amplifier design

#426
20050088238
2005-04-28

High speed amplifier incorporating pre-emphasis

#427
20050085205
2005-04-21

Radio frequency unit analog level detector and feedback control system

#428
20050073357
2005-04-07

Automatically adjusting low noise amplifier

#429
20050068106
2005-03-31

Low-noise amplifying circuit

#430
20050046480
2005-03-03

Common mode feedback circuit for fully differential two-stage operational amplifiers

#431
20050046459
2005-03-03

Biasing technique using thin and thick oxide transistors

#432
20050043007
2005-02-24

Integrated low noise amplifier

#433
20050043006
2005-02-24

Radio frequency integrated circuit having symmetrical differential layout

#434
20050030092
2005-02-10

Active filter circuit with operational amplifier

#435
20050030081
2005-02-10

Offset correcting method, offset correcting circuit, and electronic volume

#436
20050017797
2005-01-27

Switched-capacitor, common-mode feedback circuit for a differential amplifier without tail current

#437
20050017190
2005-01-27

Biosensor circuit and sensor array consisting of a plurality of said biosensor circuits and biosensor array

#438
20050007156
2005-01-13

Sense amplifier and electronic apparatus using the same

#439
20050004482
2005-01-06

Amplified system for determining parameters of a patient

#440
16729495
2020-10-13

Current integrator and related signal processing system

#441
16528059
2020-11-17

Receiver intermediate variable gain stage for isolator products

#442
16211426
2019-11-05

Body bias circuit for current steering DAC switches

#443
15190575
2017-08-15

Continuous time linear equalizer that uses cross-coupled cascodes and inductive peaking