Patents-Review.com
ClassID:

219342 ⎘

H03F3/45094 - 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 bipolar transistors as the active amplifying circuit; Long tailed pairs Folded cascode stages

Recent Application in this class:
#1
20250030390
2025-01-23

Cascode Amplifier with Improved High Frequency Linearity

 #2
20210320634
2021-10-14

Amplifiers suitable for mm-wave signal splitting and combining

 #3
20200412303
2020-12-31

FREQUENCY COMPENSATION OF AMPLIFIER

 #4
20200373895
2020-11-26

Programmable Gain Amplifier

 #5
20200373893
2020-11-26

Output stage circuit, operational amplifier, and signal amplifying method capable of suppressing variation of output signal

 #6
20200321931
2020-10-08

Amplifiers suitable for mm-wave signal splitting and combining

 #7
20200235711
2020-07-23

Integrated amplifier devices and methods of use thereof

 #8
20200091882
2020-03-19

Differential amplifier circuit and serial transmission circuit

 #9
20200014347
2020-01-09

Servo-amplifier with closed-loop biasing

 #10
20190348955
2019-11-14

Bias modulation active linearization for broadband amplifiers

 #11
20190173442
2019-06-06

Integrated amplifier devices and methods of use thereof

 #12
20190097587
2019-03-28

Voltage-to-current converters

 #13
20180316323
2018-11-01

Amplifier

 #14
20180316318
2018-11-01

Differential amplifier with extended bandwidth and THD reduction

 #15
20170294889
2017-10-12

System and method to directly couple to analog to digital converter having lower voltage reference

 #16
20160099696
2016-04-07

Fixed gain amplifier circuit

 #17
20150349795
2015-12-03

Common mode sampling mechanism for residue amplifier in switched current pipeline analog-to-digital converters

 #18
20120105109
2012-05-03

OUTPUT STAGE, AMPLIFIER CONTROL LOOP AND USE OF THE OUTPUT STAGE

 #19
20110234318
2011-09-29

Low voltage differential signal driver with reduced power consumption

 #20
20110063036
2011-03-17

Operational amplifier

 #21
20100060359
2010-03-11

Low headroom X-bridge transconductor

 #22
20100007418
2010-01-14

Input system for a variable gain amplifier having class-AB transconductance stages

 #23
20090302948
2009-12-10

Post amplifier with selectable gain

 #24
20090256634
2009-10-15

Output distortion cancellation circuit

 #25
20080309409
2008-12-18

Balanced differential cross-coupled transconductance amplifier for a multiplexor

 #26
20080186091
2008-08-07

Dual transconductance amplifiers and differential amplifiers implemented using such dual transconductance amplifiers

 #27
20070296502
2007-12-27

Method for double sampling loop negative feedback and double sampling negative feedback amplifier

 #28
20070296498
2007-12-27

High linearity low noise variable gain amplifier with continuous gain control

 #29
20070290757
2007-12-20

Input system for a variable gain amplifier having class-AB transconductance stages

 #30
20070241818
2007-10-18

Class AB folded cascode stage and method for low noise, low power, low-offset operational amplifier

 #31
20070024320
2007-02-01

Multi-standard transmitter

 #32
20060238254
2006-10-26

Input system for a variable gain amplifier having class-AB transconductance stages

 #33
20060181350
2006-08-17

Slew rate enhancement circuitry for folded cascode amplifier

 #34
20060152283
2006-07-13

Circuit and method for avoiding circuit performance degradation caused by time-variable thermal imbalances

 #35
20060152282
2006-07-13

Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals

 #36
20060125522
2006-06-15

Output stage, amplifier control loop and use of the output stage

 #37
20060006910
2006-01-12

Differential current output unit

 #38
20050285676
2005-12-29

Slew rate enhancement circuitry for folded cascode amplifier

 #39
20050128000
2005-06-16

Ultra fast, low noise operational amplifier with dynamic biasing

 #40
20050057304
2005-03-17

Single-ended input, differential output low noise amplifier

 #41
15582439
2018-05-22

Differential amplifier with extended bandwidth and THD reduction