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9041577 Digital-to-analogue converter  
The invention relates to digital-to-analog converters for converting current. The converter includes a pair of differential branches with two transistors controlled by a digital register activated...
9041576 Circuit and method  
Embodiments of the present invention create a circuit having a digital-to-time converter with a high-frequency input for receiving a high-frequency signal, a digital input for receiving a first...
9041575 Analog-to-digital conversion apparatus and method capable of achieving fast settling  
A method utilized in an analog-to-digital conversion apparatus, for converting an analog input signal into a digital output signal including a first portion and a second portion, includes: using a...
9035812 Method and apparatus for generating a band pass signal  
A modulator and a method are disclosed. The modulator is for generating a band pass signal and comprises: sigma delta modulation logic operable to receive an input signal and to perform at least a...
9030346 Method and apparatus for self-test of successive approximation register (SAR) A/D converter  
A single-ended SAR ADC includes an additional capacitor, a self-test engine, and independent control of sample and hold conditions, which allows for quick and accurate testing of the ADC.
9031260 Electronic musical apparatus having a playback control circuit  
A band division apparatus obtains an analog low-band signal, an analog intermediate-band signal and an analog high-band signal from a digital sound signal. In the band division apparatus, a...
9024796 Radio frequency digital to analog converter  
A RF digital to analog converter has a first capacitor arrangement, a first common node, and a first controller. The first capacitor arrangement has multiple switchable capacitor paths arranged in...
RE45493 Analog to digital conversion for a CMOS imager  
An image sensor system using offset analog to digital converters. The analog to digital converters require a plurality of clock cycles to carry out the actual conversion. These conversions are...
9013341 Noise shaping for digital pulse-width modulators  
A circuit including an analog-to-digital converter (ADC). The ADC is configured to receive an analog feedback signal and an analog input signal and generate a digital output. The circuit further...
9007250 Time-interleaved and sub-band reconstruction approaches to digital-to-analog conversion for high sample rate waveform generation  
The perceived sample rate at which a DAC can operate can be increased by allowing multiple DACs to process different portions of a digital signal in parallel. In this way, the outputs of multiple...
9007242 Self-calibrated delta-sigma modulator and method thereof  
A delta-sigma modulator and corresponding method are disclosed. In one implementation, the delta-sigma modulator includes a multiplexer for receiving an analog input signal and a common mode...
9007248 MASH sigma-delta modulator and DA converter circuit  
A MASH sigma-delta modulator includes: parallel integration units in M stages configured to receive N pieces of data from a previous stage, to perform integral calculation in parallel; parallel...
9007249 Amplifier, fully-differential amplifier and delta-sigma modulator  
An amplifier includes a front-end gain stage and an AC-coupled push-pull output stage. The AC-coupled push-pull output stage includes a first transistor, having a source, a drain and a gate,...
9000965 Current-steering digital-to-analog converter with cancellation of dynamic distortion  
A digital to analog converter includes a first switch, a second switch, and a driver module. The first switch includes a first differential pair of transistors connected to first inputs to receive...
8994566 DA converter  
There is provided A DA converter in which the N current switch cells each include: a current source having one end connected to a first power source; and first and second switch transistors...
8994573 Digital-to-time converter and calibration of digital-to-time converter  
A digital-to-time converter (DTC) comprises a gate controller configured to generate a gate enable signal based on first and second digital values so that the gate enable signal has a first enable...
8994567 Radio frequency circuit  
A digital-to-analog conversion circuit operates by selectively discharging members of a plurality of capacitors. Charging of the capacitors occurs during a reset period while digital-to-analog...
8988259 Voltage generator, switch and data converter circuits  
A data converter can include a resistor network, a switch network connected to the resistor network and having a plurality of switch circuits, each with an NMOS and a PMOS switch transistor, and a...
8988261 Delta-sigma D/A converter  
A delta-sigma D/A converter, by which a digital valued, input signal is convertible into a binary, clock signal time discrete, output signal. By forming an average value of the output signal over...
8981980 Method and apparatus for bandpass digital to analog converter  
Systems and methods for providing a mechanism by which digital signals can be converted to analog signals with an efficient structure that reduces the number of filters required by providing a...
8981982 Multi-zone data converters  
Aspects of a method and system for data converters having a transfer function with multiple operating zones. In some embodiments, an operating zone of the multiple operating zones is characterized...
8981979 Integrated circuits, liquid crystal display (LCD) drivers, and systems  
An integrated circuit includes a digital-to-analog converter (DAC) circuit including at least one first channel type DAC and at least one second channel type DAC. The integrated circuit includes a...
8981981 Digital-to-analog converter with monotonicity  
Systems and methods provide for the control of a fully-segmented digital-to-analog converter. The selected lead-most current cell of an array in the digital-to-analog converter is addressed...
8976050 Circuitry and methods for use in mixed-signal circuitry  
Mixed-signal circuitry, comprising: a first switching-circuitry unit for use in an analog-to-digital converter; and a second switching-circuitry unit for use in a digital-to-analog converter,...
8970573 Voltage interpolating circuit  
A display driver maps a selection code (a digital signal) to a reference voltage which is then used to produce a particular intensity of the radiation emitted from a pixel on a display screen...
8970418 High output power digital-to-analog converter system  
The present disclosure discloses a digital-to-analog converter (DAC) design which is suitable for providing a high output power high-speed DAC, e.g., in radio frequency applications. The DAC...
8970758 Image pickup device and signal processing method thereof  
An image pickup device is provided, capable of complete correction with data of once analog-to-digital conversion, and prevention of excess use of switches and analog devices and/or erroneous...
8970639 Two-stage DAC architecture for LCD source driver utilizing one-bit serial charge redistribution DAC  
A two-stage digital-to-analog converter for outputting an analog voltage in response to a M-bit digital input code includes a one-bit serial charge redistribution digital-to-analog converter...
8970411 Pipelined continuous-time sigma delta modulator  
Traditionally, pipelined continuous-time (CT) sigma-delta modulators (SDM) have been difficult to build due at least in part to the difficulties in calibrating the pipeline. Here, however, a...
8970414 Tri-level digital-to-analog converter  
Methods, systems, and apparatuses for converting a digital input signal to an analog output signal are disclosed. A first delta-sigma modulator receives a common mode reference signal and...
8963757 D/A converter including higher-order resistor string  
A resistor string digital-to-analog converter includes an input terminal receiving a digital input signal in digital code, an output terminal revealing an analog output signal in analog voltage, a...
8964860 Digital modulator  
To provide a digital modulator including: a signal adjuster (105) which is provided with a plurality of output lines, and which outputs, to the output line, which corresponds to a range to which a...
8965211 System and method of analog to digital conversion without phase ambiguity  
A system and method of digitizing an analog signal without an amplitude channel is disclosed. The system and method includes receiving an analog signal comprising a voltage v(t) and a frequency...
8963756 D/A converter, peripheral device, and PLC  
A D/A converter according to the present invention includes a wave-form data-array memory means for memorizing a wave-form data array configured of a plurality of digital values, a wave-form...
8957803 Capacitive voltage divider  
A capacitive voltage divider arrangement includes a first and second voltage divider and a first and second parasitic capacitance formed between the first and second capacitive voltage divider....
8957799 Current memory cell and a current mode digital-to-analog converter including the same  
A current memory cell includes an amplifier, transistor, first and second capacitors, and first to third switching units. The amplifier includes first to third terminals. The transistor is coupled...
8954363 Digital-to-analogue converter and neuromorphic circuit using such a converter  
A digital-to-analogue converter, with application to electronic circuits with neuromorphic architecture, comprises: transistors of identical nominal geometrical characteristics, but of dispersed...
8947281 Apparatus and methods for actively terminated digital-to-analog conversion  
Apparatus and methods for digital-to-analog conversion are disclosed. In one embodiment, an electronic system includes a bias circuit and a digital-to-analog converter (DAC) including an input...
8941522 Segmented digital-to-analog converter having weighted current sources  
A digital input to a digital-to-analog converter (DAC) is divided into a most significant portion and a lesser significant portion. At least one tap voltage generator generates a plurality of...
8941520 Resistor-based Σ-ΔDAC  
An inverter-driven resistor-ladder digital-to-analog (DAC) converter includes a resistor-ladder network that comprises a resistor for each bit signal of a multi-bit input signal. Each resistor of...
8929480 Transmitter  
There is provided a transmitter with a small area and low noise. A direct RF modulation transmitter is constituted by an N-number of input signal delay-attached direct RF converters to which an I...
8928513 Current steering digital-to-analog converter (DAC) switch driver  
A current steering digital-to-analog converter (DAC) switch driver circuit is provided. The circuit is composed of a conditioning module having a signal input to accept a binary logic digital...
8928512 Digital to analog converter and method for controlling current source array in digital to analog converter  
A digital to analog converter and a method for controlling a current source array in a digital to analog converter relate to the field of electronics technologies, and are used to reduce a system...
8922409 Switch-driving circuit and DAC using the same  
A switch-driving circuit and a Digital-to-Analog Converter (DAC) using the switch-driving circuit are provided. The switch-driving circuit includes a main cell and a reference cell. The main cell...
8922412 Bimodal digital-to-analog conversion  
An apparatus relating generally to digital-to-analog conversion is disclosed. In such an apparatus, a digital-to-analog converter (“DAC”) device includes a source DAC and a sink DAC selectively...
8917196 Sampling circuit, A/D converter, D/A converter, and CODEC  
An A/D converter comprising: a sampling circuit including a continuous section, a sampling and holding section for intermittently sampling an input signal based on an analog signal input from the...
8917195 System including feedback circuit with digital chopping circuit  
A system including a first circuit, a second circuit, and a feedback circuit. The first circuit is configured to provide input signals. The second circuit is configured to receive the input...
8912938 Converter and method of controlling the same  
A converter and a method for controlling a converter are disclosed herein, in which the converter includes a converting circuit, a current sensing circuit, a digital-to-analog converting circuit,...
8912937 High efficiency output stage amplification for radio frequency (RF) transmitters  
Highly power efficient transmitter output stage designs are provided. In an embodiment, the probability density function (PDF) of an input signal is divided into a plurality of regions, and...
8912940 String DAC charge boost system and method  
Embodiments of the present invention may provide a string DAC with charge boosting. The string DAC may include multiple strings, such as an MSB DAC and an LSB DAC, for converting a digital word...