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9041571 Flexible ADC calibration technique using ADC capture memory  
Systems and methods are provided for calibrating an analog to digital converter (ADC) using one or more feedback mechanisms. In an embodiment, a capture memory module captures a portion of ADC...
9041572 Testing a digital-to-analog converter  
Testing a digital-to-analog converter (DAC), where the test is carried out iteratively for a plurality of digital test signal values, includes: providing the digital test signal to a DAC under...
9035810 System and method for digital-to-analog converter calibration  
A system and method are provided for measuring current sources, such as might be useful in the calibration of a digital-to-analog converter (DAC). The method provides a first plurality of current...
9030342 Digital tuning engine for highly programmable delta-sigma analog-to-digital converters  
An integrated circuit includes a component calculator configured to compute at least one component value of a highly programmable analog-to-digital converter (ADC) from at least one application...
9030340 N-path interleaving analog-to-digital converter (ADC) with background calibration  
A system and method are provided of performing background corrections for an interleaving analog-to-digital converter (ADC). An analog input signal s1(t) is accepted having a first frequency f1...
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.
9030343 Communication device and method capable of power calibration  
The present invention discloses a communication device and a communication method capable of power calibration. Said communication device comprises: a digital circuit to provide a digital output...
9030341 Compensation for lane imbalance in a multi-lane analog-to-digital converter (ADC)  
Various multi-lane ADCs are disclosed that substantially compensate for impairments present within various signals that result from various impairments, such as phase offset, amplitude offset,...
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...
9013338 Method, system and apparatus for dual mode operation of a converter  
Methods, systems and apparatuses for operating a converter or other circuits are disclosed. More particularly, in one embodiment a converter or other circuit can be operated in two modes which may...
9013339 Track and hold architecture with tunable bandwidth  
To date, bandwidth mismatch within time-interleaved (TI) analog-to-digital converters (ADCs) has been largely ignored because compensation for bandwidth mismatch is performed by digital...
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...
9007253 Successive-approximation-register analog-to-digital converter and method thereof  
A main ADC (analog-to-digital converter) for converting an analog input signal into a digital data, and an auxiliary ADC for converting the same analog input signal into an auxiliary digital data,...
9007243 System and method for customizing data converters from universal function dice  
A method is provided for supplying a customized data converter fabricated from a universal function die. The method initially fabricates a plurality of universal data converter dice. Each...
9000962 System and method for interleaved analog-to-digital conversion having scalable self-calibration of timing  
A system and method are provided for adaptive self-calibration to remove sample timing error in time-interleaved ADC of an analog signal. A plurality of ADC channels recursively sample the analog...
9000961 Arrangement for reading out an analogue voltage signal with self-calibration  
An arrangement for reading out an analog voltage input signal includes an input applying the input signal thereto, and a reference unit generating an analog reference voltage. To perform online...
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...
8994572 Analog-digital converter and method for converting analog signal into digital signal  
The objective of the invention is to provide an A/D converter that exhibits fewer malfunctions due to variations in manufacturing. An A/D converter (1) of the invention, which is a cyclic type of...
8994495 Virtual vehicle entry keypad and method of use thereof  
Keypad indicia are integral with a window of a vehicle. The keypad indicia are formed using a ultra-violet (UV) fluorescent dye that is nearly invisible to a human eye until exposed to UV light. A...
8994568 Method and apparatus for closed loop control of supply and/or comparator common mode voltage in a successive approximation register analog to digital converter  
A method and apparatus for controlling supply voltage for a successive approximation register analog to digital converter and comparator common mode voltage. The method comprises: measuring a...
8988263 Successive approximation register (SAR) analog-to-digital converter (ADC) having optimized filter  
A system such as a mechanically tuned radio can have a signal path to receive and process an incoming radio frequency (RF) signal and to provide the processed signal to a first analog-to-digital...
8981984 Asynchronous to synchronous sampling using an augmented least squares solver  
A method, comprising: receiving a plurality of 2-tuples of asynchronously sampled inputs at an asynchronous to synchronous reconstructor; performing a coarse asynchronous to synchronous conversion...
8981983 A/D conversion circuit, solid-state image sensor, and camera system  
An A/D conversion circuit in which a counter is made to be capable of performing counting at both edges of a clock, up/down count values can be switched while the up/down count values are held,...
8981975 Data processing device and data processing system  
In AD conversion of a voltage, data continuity is ensured between the results of conversion after amplification and of direct conversion without amplification. In AD conversion operation, an...
8963763 Configuring an analog-digital converter  
A method for operating an analog-digital converter including a number of charging units, each comprising a switchable capacitor and an associated reference potential source, includes evaluating a...
8963754 Circuit for digitizing a sum of signals  
A circuit for digitizing a sum of a first input signal and a plurality of second input signals has a passive adder that sums the second input signals and outputs a summation signal and a multi-bit...
8963650 Semiconductor device having on-chip oscillator for producing clock signal  
A semiconductor device contrived to prevent a reference voltage and a reference current which are supplied to a high speed OCO from varying with a change in ambient temperature and/or a change in...
8957798 Artifact-corrected time-interleaved ADC  
An artifact-corrected time-interleaved analog-to-digital converter (ADC) for communications signals offers a significant increase in the available sample rate of ADCs by correcting timing and gain...
8957796 System clock jitter correction  
A system and method are provided for frequency multiplication jitter correction. The method accepts an analog reference signal having a first frequency, and using the analog reference signal,...
8957794 A/D converter and method for calibrating the same  
An ADC includes sampling means for sampling an input voltage signal, comparator(s) for receiving the sampled signal, and a DAC including circuitry for generating a search signal approximating the...
8957804 Successive approximation A/D converter  
The successive approximation A/D converter includes: switch groups 105—1 to 105—x each of which is connected to the other end of each corresponding capacitor of capacitors 106—1 to 106—x to...
8952835 Background calibration of aperture center errors in analog to digital converters  
A method of background calibration of aperture center errors in a data communication system is provided. In an implementation, in response to detection of a low sampler output (“0”) in between two...
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...
8947284 AD converter and AD conversion method  
An A/D converter includes a plurality of AD converting sections that sequentially operate at predetermined intervals. The AD converting section has an ADC that converts an analog signal into a...
8947276 System and methodology for analog-to-digital converter linearity testing  
A method for testing an analog-to-digital converter is disclosed. In an implementation, the method may include providing input data to analog-to-digital converter circuitry. The analog-to-digital...
8947280 Analogue-to-digital converter  
An integrated-circuit, continuous-time, sigma-delta analog-to-digital converter has a single-ended analog input, a converter reference input, and a ground connection. The converter has a...
8947288 Analog-digital converter  
A differential analog-digital converter is provided. The converter comprises a decision unit for evaluating a potential difference between two input signal lines, a number of charging units for...
8947290 Successive approximation AD converter  
A higher-order DAC and a lower-order DAC each have a plurality of capacitive elements having capacitance values weighted with a binary ratio and are configured so that a first terminal of each of...
8947275 Method and apparatus for calibrating digital background through capacitor division and swapping for reducing capacitor mismatch effect of analog-to-digital converter  
A high-quality Analog to Digital Converter (ADC) is used to calibrate a difference attributable to a capacitor mismatch in a Digital to Analog Converter (DAC). The present invention is...
8947286 Analog/digital converter  
An analog/digital converter includes: a first analog/digital conversion unit that performs digital conversion on received first analog input voltage in a first time period; a second analog/digital...
8941518 Methods and apparatus for calibrating pipeline analog-to-digital converters having multiple channels  
Methods and apparatus are provided for calibrating stages in pipeline analog-to-digital converters (ADCs) having multiple channels.
8941517 Method for calbrating a 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...
RE45343 Calibration of offset gain and phase errors in M-channel time-interleaved analog-to-digital converters  
Techniques for correcting component mismatches in an M-channel time-interleaved Analog to Digital Converter (ADC). In order to obtain an error measure for offset, gain or phase, errors, outputs...
8933831 Analog-to-digital converter and wireless receiver  
The influence of a jitter of a sampling clock of an analog-to-digital converter is digitally corrected at low power consumption. The sampling clock of the analog-to-digital converter is generated...
8928508 ADC calibration  
An analog-to-digital converter (ADC) including a plurality of comparators connected to the ADC. The ADC further includes a first pair of terminals and a second pair of terminals connected to each...
8922411 Configurable hardware-sharing multi-channel ADC  
Representative implementations of devices and techniques provide configurable multi-channel analog-to-digital conversion. In a multi-channel analog-to-digital converter (ADC), one or more ADC...
8922402 Offset correction device of comparator  
A comparator offset correction device opens an open switch 205 and closes a short-circuit switch 204 in offset correction of a comparator 201. In this state, a controller 203 allows the comparator...
8922407 Analog/digital converter and semiconductor integrated circuit device  
A reference A/D conversion unit is connected in parallel to an input common to a time-interleaved A/D converter to be a calibration target, and the output of each unitary A/D conversion unit which...
8922403 Analog-to-digital conversion circuit, analog-to-digital conversion method, and image sensor  
An analog-to-digital conversion circuit includes an analog-to-digital conversion unit configured to analog-to-digital convert an input voltage and generate a digital signal, a resolution control...
8922406 ADC calibration  
A method of determining at least one calibration value for a redundant analog-to-digital-converter, ADC, is disclosed. For at least an i:th bit bL, the corresponding bit weight wi is less than the...