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7821342 Device comprising a feedback-less gain controlled amplifier  
Devices (1,2) comprising feedback-less amplifiers (16,19,26,29) that are gain controlled introduce linear relationships between output signals and input signals of the feedback-less amplifiers...
7816992 Offset voltage correction circuit and class D amplifier  
An offset voltage correction circuit for a differential amplifier comprising NMOS transistors serving as a pair of differential transistors, and PMOS transistors serving as a pair of load...
7816991 Signal splitter  
A controllable-gain circuit (TI, Rt, TS1, . . . , TS4) provides a first and a second pair of complementary gain-controlled signals (Ip1, Ip3; Ip2, Ip4) in response to an input signal (RFI). In...
7812676 Low voltage input stage  
A transconductance input apparatus energized by supply voltage has an input for receiving an input signal, and an output for delivering an output signal. The apparatus also has a plurality of...
7800450 Re-configurable low noise amplifier utilizing feedback capacitors  
A re-configurable low noise amplifier utilizing feedback capacitors is disclosed. The low noise amplifier has output transistors, capacitor switch cells, and capacitance distributors all in an...
7795981 Low noise amplifier  
The invention teaches an amplifier (100) with an input signal (IN) coupled to the gate of a second transistor (Q2) and an output signal (OUT) coupled to an output node between a third resistor...
7791411 Amplifier arrangement and method for amplifying a signal  
An amplifier arrangement and a method for amplifying a signal, the arrangement including a transistor to amplify an input signal and to provide an intermediate signal. The intermediate signal is...
7786806 Tunable cascode LNA with flat gain response over a wide frequency range  
A cascode LNA circuit is provided with a tuned inductive load. The circuit shows a flat response over a wide frequency range.
7786807 Cascode CMOS RF power amplifier with programmable feedback cascode bias under multiple supply voltages  
A Radio Frequency (RF) cascode power amplifier operates with differing battery supply voltages. A transconductance stage has a transistor with an RF signal input at its gate. A cascode stage has...
7777568 High frequency receiver preamplifier with CMOS rail-to-rail capability  
A folded cascode receiver amplifier with constant gain has inputs coupled to PMOS and NMOS differential transistors pairs with scaled geometries. The transconductance of both PMOS and NMOS...
7760029 High-bandwidth high-gain amplifier  
A pipelined analog to digital converter includes a first stage that receives an input voltage, that generates a first sampled digital value and a first residue voltage, and that includes a first...
7755435 Wideband low noise amplifiers  
A wideband low noise amplifier. The wideband low noise amplifier comprises an amplifier, an output device, and an inductor. The amplifier amplifies an input signal received from an input node, and...
7741910 Capacitor gain-boost circuit  
A circuit is disclosed that comprises a capacitor gain-boost circuit and an amplifier coupled to capacitor gain-boost circuit. A capacitor gain-boost circuit comprises of capacitor, gain-boost...
7737788 Cascode gain boosting system and method for a transmitter  
A communication device includes a first polarity driver circuit including a first current source, a first amplifier that receives an input signal, that controls the first current source, and that...
7737790 Cascode amplifier and method for controlling current of cascode amplifier  
A cascode amplifier includes a first transistor, a second transistor, a third transistor, a fourth transistor and a bias circuit. Each of the transistors has a gate electrode, a first electrode...
7737789 Broadband active balun  
A broadband active balun configuration is provided. According to embodiments, the subject active balun can include a cascade and cascade transistor pair using a shared input transistor. In a...
7733174 Feedback controlled power limiting for signal amplifiers  
An apparatus is provided. The apparatus includes an amplifier, differential amplifiers, and FETs. The amplifier has an intermediate node and an output node, and the amplifier is adapted to receive...
7728672 RF amplifier  
Provided is a radio frequency (RF) amplifier. The RF amplifier includes an amplification circuit amplifying an RF signal, a bias voltage generation circuit supplying a bias voltage of the...
7724089 Amplifying circuit  
First and second voltage buffers are added to an amplifying circuit including input and output amplifying stages in which a P-MOS transistor and an N-MOS transistor operate as a push-pull circuit....
7714657 Low noise amplifier gain controlled scheme  
An amplifier includes an amplifier module coupled to an input node, and an attenuating module. The attenuating module includes an attenuation resistor coupled to the input node, and an impedance...
7714664 Cascode circuit  
A cascode circuit for a high-gain or high-output millimeter-wave device that operates with stability. The cascode circuit including two cascode-connected transistors includes: a first high...
7714662 Multiband output impedance matching circuit having passive devices, amplifier including multiband input impedance matching circuit having passive devices, and amplifier including multiband input/output impedance matching circuit having passive devices  
Disclosed are a multiband output impedance matching circuit having passive devices, an amplifier including a multiband input impedance matching circuit having passive devices, and an amplifier...
7710199 Method and apparatus for stabilizing RF power amplifiers  
A method and apparatus is provided for use in power amplifiers for reducing the peak voltage that transistors are subjected to. A power amplifier is provided with first and second switching...
7696828 Multi-linearity mode LNA having a deboost current path  
A modified derivative superposition (MDS) low noise amplifier (LNA) includes a main current path and a cancel current path. Third-order distortion in the cancel path is used to cancel third-order...
7688987 Electret microphone buffer circuit with significantly enhanced power supply rejection  
A microphone buffer circuit being adaptable for connection to a power source is disclosed. The microphone buffer circuit includes an input transistor operably connected between an input and an...
7683720 Folded-cascode amplifier with adjustable continuous time equalizer  
A system and method are provided for a folded cascode amplifier circuit that includes a first order high-pass filter coupled to a first bias voltage, a first input signal and a second input...
7679452 Amplifier arrangement and method  
An amplifier arrangement having a transistor arrangement comprising a first transistor (1) in common-emitter configuration and a second transistor (2) in common-base configuration. A switching...
7679436 Low noise amplifiers for low-power impulse radio ultra-wideband receivers  
The present invention is related to low power low noise amplifiers (LNA) including on/off switching capability, which are preferably used for impulse radio (IR) ultra-wideband (UWB) receivers. In...
7671686 Low noise amplifier  
A low-noise amplifier circuit to convert a single-ended input into a dual-ended output includes an input transconductance stage circuit, including a first MOS transistor coupled in parallel with a...
7652539 Multi-stage broadband amplifiers  
Provided herein are multi-stage broadband amplifier configured to achieve a high gain-bandwidth product in a non-distributed architecture and methods for designing the same. The broadband...
7649418 Variable-gain amplifier  
There is provided a variable-gain amplifier, including two cascode amplifiers and an attenuator. The cascode amplifiers are mutually connected in parallel via the attenuator.
7646252 Amplifier for use in radio-frequency band  
A cascade-connected transistor includes a common-source transistor which receives an input signal, and a common-gate transistor which is connected to a drain terminal of the common-source...
7642860 Current pre-amplifier and associated current comparator  
A current pre-amplifier with an input capable of receiving or supplying an input current with at least one pulse, wherein the pre-amplifier includes a regulated cascode stage including an input...
7639085 Automatic gain control circuit  
A first MOS transistor (M1) and a second MOS transistor (M2) constitute a cascode amplifier. The second MOS transistor (M2) is in a differential connection with a gain control MOS transistor (M4),...
7633344 Low noise amplifier and differential amplifier  
In a double-loop negative feedback low noise amplifier having double negative feedback paths by a feedback transformer and a feedback resistor added to a cascode amplifier comprising transistors...
7629853 Amplifying apparatus and bias stabilization circuit  
An amplifying apparatus including an amplifier having a first FET, a second FET having a source connected to a drain of the first FET, a load resistance connected to a drain of the second FET, a...
7629851 High frequency power amplifier circuit and electronic component for high frequency power amplifier  
In a high frequency power amplifier circuit that supplies a bias to an amplifying FET by a current mirror method, scattering of a threshold voltage Vth due to the scattering of the channel...
7619482 Compact low voltage low noise amplifier  
An apparatus comprising a first stage and a second stage. The first stage generally comprises a first transistor configured as a common-emitter amplifier. The second stage generally comprises a...
7598810 Power amplifier having input ends combined in series and output ends combined in series  
A power amplifier includes a first transformer, a first transistor, a first resistor, a second transformer, a second transistor, a second resistor, and a bias circuit. The first transformer drives...
7598813 Radio frequency amplifier with constant gain setting  
Radio frequency amplifier with constant gain setting. A circuitry that includes triple well connected MOSFETs is employed to eliminate body effects therein. The voltage gain as presented herein,...
7592872 Differential amplifier with single ended output  
Various embodiments for converting a differential signal to a single ended signal are disclosed. The embodiments comprise a transistor pair for receiving a differential signal; and a tank circuit...
7589593 Amplifier circuit having stacked main amplifier and parallel sub-amplifier  
An amplifier circuit for amplifying an input signal to generate an output signal is provided. The amplifier circuit has a stacked main amplifier, a parallel sub-amplifier, and a signal combiner....
7576613 Regulated cascode circuits and CMOS analog circuits including the same  
A regulated cascode circuit includes a first MOS transistor of a first conductive type, a second MOS transistor of the first conductive type, a third MOS transistor of a second conductive type, a...
7570119 Cascode-connected amplifier circuit, semiconductor integrated circuit using same, and receiving apparatus using same  
A cascode-connected amplifier circuit including two transistors cascode-connected to each other, where a first transistor having a grounded emitter or a first field-effect transistor having a...
7560994 Systems and methods for cascode switching power amplifiers  
Example embodiments of the invention may provide systems and methods for a power amplifier. The systems and methods may include a first common-source device having a first source, a first gate, a...
7555263 Adaptive radio transceiver  
An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a...
7551036 Power amplifier for amplifying high-frequency (H.F.) signals  
An H.F. power amplifier is disclosed having a plurality of branches (10, 11, 12) switched in parallel. Each branch comprises a plurality of amplifier elements (T1, T4) switched in series....
7551035 Fast converter for crossing voltage domains  
A voltage domain crossing circuit and method are disclosed. In one embodiment, the voltage domain crossing circuit comprises an AC coupling component, a DC biasing component and a high voltage...
7545221 Signal amplifying apparatus including I/O devices and core devices  
The present invention provides a signal amplifying apparatus, for converting a first input signal into a first output signal. The signal amplifying apparatus includes an input stage circuit for...
7541875 High-linearity low noise amplifier and method  
Embodiments of a high-linearity low-noise amplifier (LNA) and method are generally described herein. Other embodiments may be described and claimed. In some embodiments, an RF input signal may be...