Matches 1 - 50 out of 168 1 2 3 4 >
Match Document Document Title
7403045 Comparator circuit with reduced switching noise  
A comparator circuit includes a differential amplifier circuit, a latch circuit, and a control signal generating circuit. The latch circuit includes a pair of cross-coupled inverting amplifiers...
7394295 Sense amplifier  
The invention relates to a sense amplifier comprising the following element: a first current mirror unit coupled to a high voltage source, outputting a first current and a second current according...
7375559 Differential comparator with a replica input stage to set the accurate bias current for improved common mode rejection  
Methods and apparatus for properly biasing differential comparators are provided. Using a feedback relationship, a bias for a main stage that receives a first differential input of the comparator...
7362142 Current source apparatus, light-emitting-device apparatus and digital-analog converting apparatus  
A current source apparatus includes a first MOS transistor having a drain serving as current input terminals with the gate connected to the drain, a first switch connected to the source of the...
7348807 Electric circuit for providing a selection signal  
An electric circuit for providing a selection signal being used to select a control value of a control variable which oscillates, at steady state, about a reference value about a first control...
7315187 Comparator for input voltages higher than supply voltage  
A comparator has first and second current paths, each passing from an input through a transistor, through a current source to ground, the second current path also having a reference voltage drop...
7298182 Comparator using differential amplifier with reduced current consumption  
A comparator circuit with reduced current consumption, and other circuits utilizing the same, are provided. The comparator circuit may achieve reduced current consumption by preventing current flow...
7292083 Comparator circuit with Schmitt trigger hysteresis character  
A circuit and a method are provided to produce a novel comparator with Schmitt trigger hysteresis character. The circuit includes a current source which controls the magnitude of current flow...
7285988 Comparator circuit with offset control  
A semiconductor integrated circuit has: a differential amplifier circuit including a first MOS transistor connected between a first node and a common node and a second MOS transistor...
7236016 Low voltage comparator  
An integrated circuit comparator comprises a differential amplifier, a source follower circuit coupled to a gate terminal of a first transistor in the differential amplifier, and an output circuit....
7236015 Dynamic biasing circuit for continuous time comparators  
A method for dynamically adapting the biasing current for a fast switching CMOS comparator is achieved. The difference of the two input signals of said comparator controls the comparator's biasing...
7233171 Apparatus and method for transconductance stage with high current response to large signals  
A transconductance stage is provided. The transconductance stage includes a tail current source, a differential pair, and two current mirrors. The input to each of the current mirrors is connected...
7227388 Propagation delay characteristic comparator circuit  
A comparator circuit having improved operational characteristics. A predetermined voltage drop device is provided, such as an exemplary embodiment Schottky diode, having an anode connected to...
7193448 Wide dynamic range operational amplifier  
An operational amplifier has a bias circuit, a differential amplifier, an output stage, and a feed forward circuit. The bias circuit provides a reference. The differential amplifier is coupled to a...
7190193 Method and apparatus for a differential driver with voltage translation  
A differential amplifier is configured to receive an input signal whose magnitude is referenced between a reference voltage and a first power supply magnitude. A differential current conducted by...
7183812 Stable systems for comparing and converting signals  
Comparator systems are provided that include cross-coupled transistors which respond to a differential network that receives an input signal. The systems further include a control transistor...
7180333 Current mode logic driver that employs a level shifting mechanism  
Circuit for providing drive signal waveforms. The circuit includes a current mode logic (CML) driver that includes a common mode voltage (VCM), an output node and a complementary output node. The...
7123057 Self-biased comparator with hysteresis control for power supply monitoring and method  
A voltage monitor circuit for biasing a well region of a CMOS circuit includes a self-biased comparator which compares first (INP) and second (INN) input signals. The comparator includes first (MN...
7113005 Current mirror circuit  
The present invention provides a current mirror circuit of which consistency (ratio) of the input current and output current is more improved. This current mirror circuit comprises input side and...
7107025 High gain, highly linear mixer  
A high gain, highly linear mixer includes an input section, mixing section, at least one tuning component, and at least one stand by current source. The input section is operably coupled to receive...
7102359 Integrated fault detector circuit  
According to one embodiment, an integrated fault detector circuit is used to detect one or more of the open circuit and short circuit of a load connected to an integrated circuit power MOSFET...
7098877 Driver circuit  
A driver circuit that allows high-speed switching when the reference current (I) is small. The driver circuit includes a drive current generation circuit ( 220 ) for supplying to a first node ( 232...
7084674 Differential amplifier with reduced common-mode and method  
A comparator includes a circuit which provides a plurality of common-mode difference signals in response to differential input signals. The circuit provides a common-mode feedback signal in...
7078962 Dynamic current generator with asymmetric common-mode input range  
A dynamic current generator 30 is disclosed in which a common-mode input range is provided which is asymmetric toward the bottom rail VEE. An embodiment of the invention is also disclosed used in...
7075338 Light emitting element driving circuit with current mirror circuit  
A light emitting element driving circuit for supplying driving current I2 to a light emitting element 10 connected to one line 2 of a current mirror circuit 12 is equipped with a pulse...
7053672 Method and apparatus for detecting semiconductor characterist variations  
The present invention discloses a skew detection device which can detect a skew of a transistor changed due to a driving voltage, a size and a process variable. The skew detection device includes a...
7053671 Low-jitter differential-to-single-ended data conversion circuits  
Circuitry is provided for converting differential digital data to single-ended digital data. Differential data signals have complementary pairs of signals that are referenced to each other....
RE38907 Semiconductor device  
The differential amplifier of a comparator circuit includes first and second n-type MOSFETs for receiving an input signal, first and second p-type MOSFETs of a current mirror circuit, and a third...
6965256 Current mode output stage circuit with open loop DC offset reduction  
An output stage circuit for a current mode device provides open loop reduction or cancellation of DC offset in differential output signals. Differential input signals are received and sourcing...
6960944 High voltage tolerant differential input receiver  
A computer system includes at least one high-voltage device and at least one low-voltage device. The low-voltage device has at least one differential input receiver, which reduces the risk of gate...
6957278 Reference -switch hysteresis for comparator applications  
The present invention concerns an apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a reference output voltage in response to a plurality of...
6956408 Drive device for a light-emitting component  
A drive device for a light-emitting component including a reference source, which generates a current specification signal specifying a desired current through the light-emitting component, a...
6921949 Semiconductor integrated circuit device  
A semiconductor integrated circuit device is comprised of an amplifier circuit having first and second PMOS and NMOS transistors. The first PMOS transistor has a gate electrode and a drain...
6836157 Method and apparatus for driving LEDs  
A plurality of LEDs is driven in parallel, in at least two modes. In a first mode, the LEDs are driven with a first voltage. In subsequent modes, the LEDs are driven with successively higher...
6833746 Pre-buffer voltage level shifting circuit and method  
A pre-buffer voltage level shifting circuit includes a multi-supply voltage level shifting circuit having single gate oxide devices coupled to produce a pre-buffer output signal to an output...
6813209 Current integrating sense amplifier for memory modules in RFID  
A low read current, low power consumption sense amplifier well suited for low frequency RFID systems is disclosed. An MOS transistor receives the read current from a memory cell, typically an...
6812747 Supply voltage comparator  
A comparator compares a first voltage applied to a first input to a second voltage applied to a second input. The comparator delivers an output signal having a first value when the second voltage...
6801059 Comparator with offset voltage  
A comparator according to the present invention can generate an output signal of low or high level by comparing a first and second input voltages that have a common voltage. An input stage circuit...
6788113 Differential signal output apparatus, semiconductor integrated circuit apparatus having the differential signal output apparatus, and differential signal transmission system  
In a differential output signal circuit suitable for restraining voltage overshooting/undershooting at differential output terminals due to lags in input signals and realizing stable and fast...
6777984 Differential amplifying method and apparatus capable of responding to a wide input voltage range  
A differential amplifying apparatus includes first and second differential pair circuits having opposite conductivity, first and second current sources, first and second current mirror circuits,...
6777983 Differential voltage transmission circuit  
A differential voltage transmission circuit. The reference bias circuit outputs a first reference voltage, a second reference voltage and a reference current corresponding to a reference current...
6759878 Voltage comparator circuit and substrate bias adjusting circuit using same  
Voltage comparator circuit capable of precisely comparing voltages to ground and power supply potentials, without level converter or plurality of power supplies. First and second MOS transistors,...
6747486 Comparator  
A comparator includes an adjustable offset and particularly dimensioned and configured components. The particular configuration and dimensioning of the comparator ensure that the offset voltage can...
6741105 Differential circuit and peak hold circuit including differential circuit  
A peak hold circuit which improves the precision of a hold voltage. The peak hold circuit includes a first input transistor which receives an input voltage and a second input transistor which...
6731159 Mirroring circuit for operation at high frequencies  
A mirroring circuit operating at high frequencies is provided. The mirroring circuit includes a first branch having a first transistor in series with a first resistor, a second branch having a...
6727732 High speed differential signal detection  
A method and a circuit detect the presence of a high-speed signal, such as a high-speed differential signal, based on a software-programmable signal amplitude threshold. In one embodiment, when the...
6703872 High speed, high common mode range, low delay comparator input stage  
The comparator input stage uses low voltage transistors 20 and 21 as the input pair. They have a small threshold voltage, and hence support a low common mode. The circuit includes a current...
6686778 High voltage tolerant differential input receiver  
A computer system includes at least one high-voltage device and at least one low-voltage device. The low-voltage device has at least one differential input receiver, which reduces the risk of gate...
6624668 Digitally programmable phase-lock loop for high-speed data communications  
Electronic devices are typically coupled together to operate as systems that require the communication of data between two or more devices. Many of these devices includes a communications circuit,...
6617905 System and method for threshold bias offset voltage cancellation in a comparator  
A system and method are provided for reducing the threshold bias offset voltage in a comparator, by canceling and bypassing the bias offset current errors. The comparator system comprises...
Matches 1 - 50 out of 168 1 2 3 4 >