Class 330/292 - Having compensation for interelectrode impedance

Subclass of Class 330 - Amplifiers
Definition: Subject matter wherein signal feedback means are provided
No. of applications: 34
Last issue date: 12/03/2009

Application No.	Application Title	Issue Date
20090295477	AHUJA COMPENSATION CIRCUIT FOR OPERATIONAL AMPLIFIER A frequency compensated operational amplifier includes: an input stage, for receiving an input signal; an output stage, coupled to the input stage, for generating an output signal according to an output of the input stage; a first current source, for providing a first b...	12/03/2009
20090261907	INTEGRATED CIRCUIT HAVING ON DIE STRUCTURE PROVIDING CAPACITANCE IN AMPLIFIER FEEDBACK PATH An amplifier structure includes shield conductors that are provided spatially adjacent to elongated feedback signal lines that couple a feedback circuit to an amplifier input. The shield conductors are provided between the feedback signal lines and a ground plane, which...	10/22/2009
20090206934	AMPLIFIER AUTO BIASING This disclosure relates to monitoring signal overshoot of an amplifier generated signal and automatically adjusting a quiescent current of the amplifier as a function of the monitored signal overshoot....	08/20/2009
20090206929	OPERATION AMPLIFIER FOR IMPROVING SLEW RATE An OP amplifier including an input stage and an output stage for improving a slew rate is provided. The input stage receives one of input voltages, and generates an internal voltage according to the received input voltage. The output stage receives and gains the interna...	08/20/2009
20090195311	INDEPENDENT DOMINANT POLE COMPENSATION OF TWO LOOPS USING ONE COMPENSATION ELEMENT Disclosed is a differential amplifier system that maintains high speed characteristics of the differential amplifier while providing stability from a common-mode loop by using dominant pole compensation. The disclosed system includes a first and second transconductance ...	08/06/2009
20090108933	Compensation For Amplifiers Driving A Capacitive Load This disclosure relates to load compensating multi-stage amplifier structures at an output of one of the amplifier stages....	04/30/2009
20090066418	AMPLIFIER CIRCUIT AND COMMUNICATION DEVICE There is provided an amplifier circuit having a common-source amplifier, an output load connected to an output terminal of the common-source amplifier, a buffer circuit connected to the output terminal of the common-source amplifier, a feedback circuit connected between...	03/12/2009
20090066421	Internal frequency compensation circuit for integrated circuit controllers A frequency compensation circuit internal to an integrated circuit which comprises a transconductance amplifier having a first input configured to receive a reference voltage, a second input configured to receive an input voltage and an input current, a first output con...	03/12/2009
20090045876	LOW NOISE, LOW POWER, HIGH LINEARITY DIFFERENTIAL AMPLIFIER WITH A CAPACITIVE INPUT IMPEDANCE A low noise, low power differential two-stage amplifier includes a first stage comprising a pair of electrical devices that sense an input signal difference across the pair of electrical devices; and a control feedback loop operatively connected to the first stage, wher...	02/19/2009
20080297249	CMOS AMPLIFIERS WITH FREQUENCY COMPENSATING CAPACITORS The frequency and transient responses of a CMOS differential amplifier are improved by employing one or more compensating capacitors. A compensating capacitor coupled to a differential input of the CMOS differential amplifier is used to inject current into the different...	12/04/2008
20080284490	Compensated operational amplifier and active RC filter including such an amplifier A method of compensating a monolithic integrated operational amplifier against process and temperature variations, such that the operational amplifier is suitable for use in an active filter, the method comprising a providing an amplifier having a first stage and an out...	11/20/2008
20080272844	CLASS AB FOLDED-CASCODE AMPLIFIER HAVING CASCODE COMPENSATION A class AB folded-cascode amplifier having improved gain-bandwidth product, comprises a differential input circuit including a differential transistor pair coupled to a source of tail current and responsive to a differential input signal for conducting a first current, ...	11/06/2008
20080238552	SEMICONDUCTOR DEVICE A semiconductor device includes a phase compensation circuit 6 using a MOS capacitor with a structure in which an insulating film is disposed between a gate electrode formed on a semiconductor substrate and a diffusion layer. The phase compensation circuit includ...	10/02/2008
20080012640	Unilateralized amplifier The effect of input signal frequency on the output of a differential amplifier is reduced by connecting the conductor of each of the input signal components to the respective conductor of the output signal component of opposite phase with a capacitor substantially equal...	01/17/2008
20080001673	Semiconductor Device An inductively degenerated low noise amplifier arrangement is shown having a transistor and a bonding pad connected to the input terminal of the transistor, wherein the bonding pad has parasitic capacitance, and wherein the bonding pad includes a metal layer connected t...	01/03/2008
20070194850	DYNAMICALLY COMPENSATED OPERATIONAL AMPLIFIER An operational amplifier is dynamically compensated depending on the internal state of the operational amplifier. Compensation is fully enabled only when the internal state indicates a risk of instability. When the internal state of the operational amplifier indicates t...	08/23/2007
20070170993	Differential amplifier having an improved slew rate A differential amplifier receives a differential input signal and generates an output signal at an output node. An auxiliary circuit coupled to the differential amplifier operates to improve slew rate response. In quiescent and small signal situations with respect to th...	07/26/2007
20070096825	Operational amplifier, integrating circuit, feedback amplifier, and controlling method of the feedback amplifier An operational amplifier according to an embodiment of the present invention includes: an operational amplifier stage executing differential-amplification of an input voltage and a reference voltage; a source-grounded amplifier stage outputting the differential-amplifie...	05/03/2007
20070046376	Neutralization of feedback capacitance in amplifiers A transistor amplifier circuit has a current to current feedback transformer for neutralization of feedback capacitance and setting the input impedance of the amplifier. IM3 cancellation is implemented by out-of-band terminations at the input, which does not depend on t...	03/01/2007
20070030074	Zero cancellation in multiloop regulator control scheme Control loops in a voltage regulator can be stabilized using minimal silicon area. A current limit signal, generated by a current limit control loop in the voltage regulator, can be divided to minimize a zero provided in a compensation set associated with a voltage cont...	02/08/2007
20070008036	Miller-compensated amplifier A Miller-compensated amplifier, having an amplifier input and an amplifier output, comprises a first gain stage, a second gain stage, a third gain stage, and a capacitor. The first gain stage has the amplifier input as a first gain stage input thereto and a first gain s...	01/11/2007
20060290429	Composition form forming anti-reflective coating for use in lithography There is provided a composition for forming anti-reflective coating for anti-reflective coating that has a good absorption of light at a wavelength utilized for manufacturing a semiconductor device, that exerts a high protection effect against light reflection, that has...	12/28/2006
20060261896	CMOS amplifiers with frequency compensating capacitors The frequency and transient responses of a CMOS differential amplifier are improved by employing one or more compensating capacitors. A compensating capacitor coupled to a differential input of the CMOS differential amplifier is used to inject current into the different...	11/23/2006
20060250184	SiGe differential cascode amplifier with miller effect resonator SiGe Differential Cascode Amplifier with Miller Effect Resonator A high-power, high frequency (1-100 GHz) power amplifier, made using SiGe transistors. A differential common-emitter amplifier section supplies the voltage amplification, allowing the total voltage swing o...	11/09/2006
20060214731	Differential two-stage miller compensated amplifier system with capacitive level shifting A differential two-stage Miller compensated amplifier system with capacitive level shifting includes a first stage differential transconductance amplifier including first and second output nodes and an output common mode voltage, a second stage differential transconduct...	09/28/2006
20060164164	Variable gain amplifier with low phase variation A VGA is provided that is designed to reduce or even eliminate entirely variations in phase response/shift with changes in gain. Compensation is made for parasitic capacitances of elements in the VGA that would otherwise cause variation in phase with changes in gain. An...	07/27/2006
20060125567	Amplifier circuit An amplifier circuit has a simple circuit architecture that enables a push-pull output function while exhibiting low power consumption. The amplifier circuit includes a first transconductance amplifier to which an output of a two-input differential amplifier and a first...	06/15/2006
20060097791	Low offset rail-to-rail operational amplifier An operational amplifier with a first stage differential input circuit having low aspect ratio devices of size chosen to achieve a low offset voltage, and an output stage having high aspect ratio devices able to operate at higher frequencies than the input stage, provid...	05/11/2006
20060091955	Circuits and methods for improving slew rate of differential amplifiers Circuits and methods are provided for providing high speed operational amplifiers and, in particular, operational amplifiers having frequency compensation circuits that provide improved slew rates with low power dissipation when configured with feedback. Frequency compe...	05/04/2006
20060044066	CMOS amplifiers with frequency compensating capacitors The frequency and transient responses of a CMOS differential amplifier are improved by employing one or more compensating capacitors. A compensating capacitor coupled to a differential input of the CMOS differential amplifier is used to inject current into the different...	03/02/2006
20050104662	Amplifier arrangement The invention provides an amplifier arrangement which is of multistage design. The output transistor in the output stage has a coupling path between its control input and its controlled path. The coupling path comprises a series circuit comprising a Miller compensation ...	05/19/2005
20050088238	High speed amplifier incorporating pre-emphasis An amplifier circuit for receiving an input signal and providing an output signal, comprises a main chain of logic stages with a plurality of nodes therebetween, and at least one auxiliary chain nested between one node in the main chain and another node, which is not th...	04/28/2005
20050073364	FREQUENCY COMPENSATION OF WIDE-BAND RESISTIVE GAIN AMPLIFIER A technique for minimizing the effect of parasitic capacitance in a resistive gain amplifier. Instead of the resistors being formed directly over the substrate, or over an oxide of the substrate, a semiconductor element (e.g., an n-well) is used between the resistor and...	04/07/2005
20050057309	Transistor amplifier An amplifier includes at least a first transistor which has a first input signal at a first input terminal and has a first output terminal at which a first output amplified signal is present. The first transistor comprises a first parasitic capacitive element which is a...	03/17/2005

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Class 330/292 - Having compensation for interelectrode impedance