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Match Document Document Title
8952729 Sample and hold circuit with reduced noise  
A sample and hold circuit and a method for sampling a signal are disclosed. The sample and hold circuit includes first and second switches, first, second, and third capacitors, and an amplifier....
8912838 Passive offset and overshoot cancellation for sampled data circuits  
A zero-crossing detector with effective offset cancellation includes a set of series connected capacitors and an amplifier having an input terminal. An offset capacitor is operatively connected...
8896350 Sampling circuit and sampling method  
A sampling circuit and a sampling method are provided, where the sampling circuit includes a first delay chain, a second delay chain, and a half-speed binary-phase detector. The first delay chain...
8854085 Method and apparatus for cancellation of the second harmonic in a differential sampling circuit  
A compensation circuit for eliminating harmonic content resulting from a phase imbalance in a differential sampling circuit. The compensation circuit includes a pair of field effect transistors...
8823564 Sampling circuit, A/D converter, D/A converter, and codec  
A sampling circuit includes a continuous section which is a circuit for transmitting a continuous signal; a digital section for transmitting a signal which is sampled and quantized; and a sampling...
8816887 Sampling circuit, a method of reducing distortion in a sampling circuit, and an analog to digital converter including such a sampling circuit  
A sampling circuit comprising: an input node; a first signal path comprising a first sampling capacitor and a first signal path switch in a signal path between the input node and a first plate of...
8803559 Semiconductor circuit having switching element, capacitor, and operational amplifier circuit  
A semiconductor circuit which can have stable input output characteristics is provided. Specifically, a semiconductor circuit in which problems caused by the leakage current of a switching element...
8659339 Offset canceling circuit, sampling circuit and image sensor  
An offset canceling circuit stores charge corresponding to a voltage difference between a reset voltage received from a unit pixel and a reference voltage, thereby canceling an offset of the unit...
8610467 Sample and hold circuit  
A sample and hold circuit is provided. The circuit includes a plurality of switches, a first capacitor, an operational amplifier having a first input selectively coupled to the first capacitor and...
8513982 Sample and hold circuit and differential sample and hold circuit  
A sample and hold circuit is provided. The circuit includes a first switch configured to receive an input, a second switch coupled to a second end of the first switch, a first capacitor coupled to...
8497731 Low pass filter circuit  
A low pass filter circuit includes an amplifier having a single-ended output. A first line and a second line are arranged to receive a differential signal. A first switch selectively connects the...
8415985 Circuits and methods for sampling and holding differential input signals  
Circuits and methods for sampling differential input signals having wide input swings including voltages below ground potential, and capable of operating on a single positive supply voltage are...
8378717 High-speed BiCMOS double sampling track-and-hold amplifier circuit  
A high-speed BiCMOS double sampling track-and-hold amplifier circuit, comprising an input buffer, two front-end switches, two sampling capacitors, two intermediate buffers, two feedback buffers,...
8373489 Offset cancellation for sampled-data circuits  
A comparator based circuit with effective offset cancellation includes first and second amplifiers and an offset capacitor operatively connected to the first and second amplifiers. An offset...
8305131 Passive offset and overshoot cancellation for sampled-data circuits  
A zero-crossing detector with effective offset cancellation includes a set of series connected capacitors and an amplifier having an input terminal. An offset capacitor is operatively connected...
8283948 Capacitor nonlinearity correction  
A sample-and-hold (S/H) circuit is provided. The S/H circuit generally comprises a sampling switch, a sampling capacitor, and a correction network. The sampling switch that receives an analog...
8237489 Capacitance interface circuit  
A capacitance interface circuit is provided. An external inductive capacitor is divided into a variable portion and an invariable portion. The capacitance of an internal adjustable capacitor is...
8169251 Capacitor interface circuit  
A capacitor interface circuit is provided. A capacitor under test (CUT) is divided into a variable portion and an invariable portion, and the capacitance of an offset capacitor is designed to...
8149020 Differential amplifier, sample-and-hold circuit, and amplifier circuit  
To provide a common-mode feedback circuit that feeds back signal corresponding to common-mode components of output terminal voltage of first and second amplifiers to input terminals of the first...
8138804 Correlated double sampling circuit  
A correlated double sampling (CDS) circuit for sampling first and second pixel signals, which are respectively transmitted via first and second data lines, in a pixel array. The CDS circuit...
8054105 Sample hold circuit and method for sampling and holding signal  
A sample hold circuit and a method for sampling and holding a signal are provided. The sample hold circuit includes a sample unit, a direct current (DC) voltage elimination unit, and a hold unit....
8035422 Transconductance amplifier with a filter for rejecting noise outside the useful band  
The invention relates to a transconductance amplifier, providing current variations di=k·dv when it receives voltage variations dv. The amplifier comprises a first MOS transistor (MN4) whose drain...
8000789 Capacitive interface circuit for low power sensor system  
This disclosure describes a capacitive interface circuit for a low power system. The capacitive interface circuit is configured to achieve very low noise sensing of capacitance-based transducers,...
7973570 Sample-and-hold (S/H) circuit  
A sample-and-hold circuit (100) is provided that that includes a sample-and-hold switch (125), an integrator circuit (180) designed to generate an output voltage (VOUT) signal, and a bias voltage...
7969222 Method and system for DC offset correction loop for a mobile digital cellular television environment  
Methods and systems for a DC offset correction loop for a mobile digital cellular television environment are disclosed. Aspects of one method may include removing at least a portion of a DC offset...
7940089 Peak-detect-and-hold circuit and method thereof using ramp sampling technique  
A peak detect-and-hold circuit and method thereof using ramp sampling technique includes utilizing two sampling signals of different slopes to sample an input voltage for respective tracking...
7863943 Sampling device and circuit having a single voltage supply  
In embodiments of the present invention a device, circuit, and method are described for sampling input signal voltages, which may include voltages below a negative supply voltage for the device or...
7847600 Track and hold circuit  
Methods and apparatus are disclosed to track and hold a voltage. An example track and hold circuit comprises a first electronic switch, a second electronic switch, and a current mode logic amplifier.
7843232 Dual mode, single ended to fully differential converter structure  
A dual mode, single ended to fully differential converter structure is incorporated into a fully differential sample and hold structure which can be coupled with an ADC as a front end for mixed...
7755399 High speed comparator circuit with offset cancellation  
Provided is a comparator circuit that is capable of operating at high speed and canceling an offset voltage with high precision. The comparator circuit includes a second amplifier circuit for...
7737732 Constant slope ramp circuits for sample-data circuits  
A sample-data analog circuit includes a level-crossing detector. The level-crossing detector controls sampling switches to provide a precise sample of the output voltage when the level-crossing...
7728650 Switches with passive bootstrap of control signal  
Switches with passive bootstrap that can achieve good sampling performance are described. In one design, a sampling circuit with passive bootstrap includes first and second filters and a switch....
7683677 Sample-and-hold amplification circuits  
A sample-and-hold amplification circuit comprises an amplifier, a first sample-and-hold unit, and a second sample-and-hold unit. The amplifier has an input terminal and an output terminal. The...
7633386 Amplifier for multi-use of single environmental sensor  
A detection system in which a single sensor is employed to detect an extensive range of a parameter. The output signal from the sensor is fed to the input of the electrical circuit, having a...
7541846 Sample-and-hold apparatus and operating method thereof  
A sample-and-hold apparatus and an operating method thereof are provided. The sample-and-hold apparatus includes a sampling amplifier, a transistor, a first switch, a second switch, a sampling...
7479811 Sample/hold circuit module  
A sample/hold circuit module. The sample/hold circuit module comprises a sample/hold circuit, an S/H controller, a pass transistor, and a high voltage generator. The sample/hold circuit comprises...
7477079 Single ended switched capacitor circuit  
A single-ended, non-differential switched capacitor circuit is disclosed which removes the effect of common mode noise. To this end, the circuit creates a capacitance divider using the sampling...
7477078 Variable phase bit sampling with minimized synchronization loss  
Variable phase bit sampling implementations are disclosed which minimize requirements for downstream digital processing resynchronization in systems that incorporate adjustable bit phase sampling...
7459943 High accuracy sample and hold circuit having a common negative input terminal  
A high accuracy sample and hold circuit including a first switch, a second switch, a first capacitor, a second capacitor and an amplifier is disclosed. The first capacitor receives and saves a...
7403046 Sample-and-hold circuits  
A sample-and-hold circuit including a first switch, a first capacitor and an amplifier is provided. The switch has a first terminal to receive the input signal and transmit it to a second terminal...
7397287 Sample hold circuit and multiplying D/A converter having the same  
A sample hold circuit includes an op-amp, first capacitors provided on an inverting side of the op-amp and second capacitors provided on a non-inverting side. The sample hold circuit is configured...
7385427 Sample-and-hold circuits having reduced channel conductance variation and methods of operation thereof  
An electronic device, such as a sample-and-hold circuit, includes a field effect transistor (FET), a capacitor, and a voltage offset circuit. The FET is configured to receive a signal at a first...
7315200 Gain control for delta sigma analog-to-digital converter  
Gain control for delta sigma analog-to-digital converter. A method is disclosed for driving the input of an integrator in a delta-sigma converter having an amplifier with a non-inverting input, an...
7304518 Track and hold circuit  
A track and hold circuit (1) comprising:—a linear amplifier (2) receiving a differential analog signal (D+, D−) and being controlled by a first binary clock signal (H+) having a first phase,—the...
7302055 Discharging envelope detector  
A receiver to detect pulses on a home phone wiring network using envelope detection. The receiver comprises an integrating capacitor charged by a first current source responsive to a differential...
7295042 Buffer  
A switched capacitor buffer operating by the push-pull method is taught. The buffer may include a pull-up device and a pull-down device. A switched capacitor circuit may be used to control the...
7279940 Switched-capacitor circuit with time-shifted switching scheme  
A switched-capacitor circuit for sampling a pair of differential input signals includes a first bootstrapped switch and a first non-boosted switch connected in parallel between a first output...
7271625 Sample-and-hold device having input stages of amplifier coupled to capacitors  
A sample-and-hold device including first and second capacitors, first and second switches, amplifier and feedback network is provided. The amplifier includes first and second input stages, output...
7239183 Active current mode sampling circuit  
The invention relates to an active current mode sampling circuit comprising an operational amplifier (103) and at least one switched capacitor (C2, C2a, C2b). In order to reduce the power...
7236017 High speed sample-and-hold circuit  
The use of a dynamic current bias technique to dynamically bias a voltage switch of a sample-and-hold circuit is disclosed. Dynamically biasing the voltage switch mitigates nonlinear distortion...

Matches 1 - 50 out of 201 1 2 3 4 5 >