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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... 

9041569 
Method and apparatus for calibration of successive approximation register analogtodigital converters
A successive approximation register (SAR) ADC includes an SAR comparator circuit including first and second inputs, a control input, and first and second outputs. The SAR comparator circuit... 

9041572 
Testing a digitaltoanalog converter
Testing a digitaltoanalog 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... 

9041570 
Analogtodigital converter and analogtodigital conversion method
An analogtodigital converter according to the present invention includes first and second analogtodigital conversion cells (11, 12), control means (10) for, when a mode specifying signal MD... 

9041565 
NRZ signal amplifying device and method, and error rate measurement device and method
To set an optimum offset voltage and detect an NRZ signal with a very small amplitude. An NRZ signal amplifying device 2 includes: inputside voltage detection means 13 for detecting a highlevel... 

9030340 
Npath interleaving analogtodigital converter (ADC) with background calibration
A system and method are provided of performing background corrections for an interleaving analogtodigital converter (ADC). An analog input signal s1(t) is accepted having a first frequency f1... 

9030346 
Method and apparatus for selftest of successive approximation register (SAR) A/D converter
A singleended SAR ADC includes an additional capacitor, a selftest engine, and independent control of sample and hold conditions, which allows for quick and accurate testing of the ADC. 

9030341 
Compensation for lane imbalance in a multilane analogtodigital converter (ADC)
Various multilane 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... 

9019140 
System and method for analog to digital (A/D) conversion
In one embodiment, a method for converting an analog input value to a digital output value is disclosed. A successive approximation is performed. The analog input is quantized to a first quantized... 

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... 

9013340 
Protection circuit for analogtodigital converter, digital power supply, digital signal processing method, processing module, and circuit protection method
A protection circuit includes: a first gain module, configured to receive a first input signal, scale the first input signal according to a first scaling factor, to obtain a first analog signal,... 

9007242 
Selfcalibrated deltasigma modulator and method thereof
A deltasigma modulator and corresponding method are disclosed. In one implementation, the deltasigma modulator includes a multiplexer for receiving an analog input signal and a common mode... 

9007253 
Successiveapproximationregister analogtodigital converter and method thereof
A main ADC (analogtodigital 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,... 

9007251 
Apparatus and method for converting an analog time domain signal into a digital frequency domain signal, and apparatus and method for converting an analog time domain signal into a digital time domain signal
An apparatus for converting an analog signal into a digital signal includes: two identical analogtodigitalconverters converting the analog signal into first and second digital time domain... 

9007245 
Semiconductor device having AnalogtoDigital Converter with gaindependent dithering and communication apparatus
A semiconductor communication device reduces influence of noise that is produced by applying a dither signal. The semiconductor communication device includes a DeltaSigma analogtodigital... 

9000960 
Highorder and nested redundancies in timeinterleaved ADCs
Examples are provided for timeinterleaved analogtodigital conversion with redundancy. The redundancy may include highorder and nested redundancies. An apparatus may include multiple... 

8994572 
Analogdigital 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... 

8988263 
Successive approximation register (SAR) analogtodigital 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 analogtodigital... 

8988268 
Analogdigital converter and analogdigital conversion method
According to the present invention, a successive approximation type analogdigital converter includes: a comparator outputting a result of comparing an analog signal and a reference voltage; a... 

8981972 
Background calibration of ADC reference voltage due to input signal dependency
Embodiments of the present invention may provide an analogtodigital converter (ADC) system. The ADC system may include an analog circuit to receive an input signal and a reference voltage, and... 

8983000 
Receiver circuit and method for operating a receiver circuit
A receiver circuit includes a unit configured to determine filter coefficients based on a sampling time error of a received signal and a phase error of the received signal, as well as a filter... 

8981973 
Successiveapproximationregister (SAR) analogtodigital converter (ADC) attenuation capacitor calibration method and apparatus
A fixed capacitor is coupled between a top plate of an attenuation capacitor and a variable voltage reference. The error in the attenuation capacitor may be calibrated out with the variable... 

8981974 
Timetodigital converter and control method
A first switching unit configured to switch a first state for inputting a first clock signal input from a first input terminal, and a second state for inputting an output signal of a second delay... 

8981984 
Asynchronous to synchronous sampling using an augmented least squares solver
A method, comprising: receiving a plurality of 2tuples of asynchronously sampled inputs at an asynchronous to synchronous reconstructor; performing a coarse asynchronous to synchronous conversion... 

8981983 
A/D conversion circuit, solidstate 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,... 

8970758 
Image pickup device and signal processing method thereof
An image pickup device is provided, capable of complete correction with data of once analogtodigital conversion, and prevention of excess use of switches and analog devices and/or erroneous... 

8970408 
Builtinselftest for an analogtodigital converter
A semiconductor chip with a builtinselftest circuit including a first analogtodigital converter (ADC) configured to convert an analog input voltage signal received at its input into a digital... 

8963763 
Configuring an analogdigital converter
A method for operating an analogdigital 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 multibit... 

8963750 
Timetodigital conversion with analog dithering
There is described a timetodigital conversion scheme using an arrangement of delay elements based TimetoDigital Converter, TDC (20), wherein dithering is built in the digital domain and... 

8957798 
Artifactcorrected timeinterleaved ADC
An artifactcorrected timeinterleaved analogtodigital 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,... 

8957805 
Balanced signal processing circuit and analogdigital conversion circuit
A balanced signal processing circuit includes: a comparator; a first capacitor having a first end connected to a noninverting input terminal of the comparator; a second capacitor having a first... 

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... 

8957795 
Analogtodigital conversion device
An analogtodigital conversion device includes: an analogtodigital converter that receives an analog voltage and converts the analog voltage into a digital value to output the converted digital... 

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... 

8952836 
Pipeline analogtodigital converter
A pipeline analogtodigital converter is disclosed which includes at least one periodic unit consisting of two adjacent stages that jointly use two capacitor networks of the same structure. Each... 

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... 

8947281 
Apparatus and methods for actively terminated digitaltoanalog conversion
Apparatus and methods for digitaltoanalog conversion are disclosed. In one embodiment, an electronic system includes a bias circuit and a digitaltoanalog converter (DAC) including an input... 

8947276 
System and methodology for analogtodigital converter linearity testing
A method for testing an analogtodigital converter is disclosed. In an implementation, the method may include providing input data to analogtodigital converter circuitry. The analogtodigital... 

8947280 
Analoguetodigital converter
An integratedcircuit, continuoustime, sigmadelta analogtodigital converter has a singleended analog input, a converter reference input, and a ground connection. The converter has a... 

8947288 
Analogdigital converter
A differential analogdigital 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 higherorder DAC and a lowerorder 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... 

8947285 
ADC with noiseshaping SAR
Representative implementations of devices and techniques provide analog to digital conversion of analog inputs. A multistage comparator using a feedforward technique can provide noise shaping of... 

8947275 
Method and apparatus for calibrating digital background through capacitor division and swapping for reducing capacitor mismatch effect of analogtodigital converter
A highquality 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 analogtodigital converters having multiple channels
Methods and apparatus are provided for calibrating stages in pipeline analogtodigital converters (ADCs) having multiple channels. 

RE45343 
Calibration of offset gain and phase errors in Mchannel timeinterleaved analogtodigital converters
Techniques for correcting component mismatches in an Mchannel timeinterleaved Analog to Digital Converter (ADC). In order to obtain an error measure for offset, gain or phase, errors, outputs... 