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7612700 Pipeline type A/D converter apparatus provided with precharge circuit for precharging sampling capacitor  
In a pipeline type A/D converter apparatus including A/D converter circuit parts connected in cascade with each other and A/D converting a sample hold signal in a pipeline form, each A/D converter...
7602323 Digital background correction of nonlinear error ADC's  
The invention provides circuits and methods for estimating and correcting nonlinear error in analog to digital converters that is introduced by nonlinear circuit elements, for example one or more...
7598896 A/D converter with noise cancel function  
An A/D converter comprises capacitors C 1 , C 2 , C 3 , C 4 , and C 5 coupled via a plurality of switches to a differential input/differential output amplifier 1 . The capacitor C 5 determines a...
7576677 Pipeline A/D converter converting analog signal to digital signal  
A first stage of a pipeline A/D converter is configured to output a sub analog signal at a level within a predetermined output voltage range even if a level of an input analog signal exceeds a...
7576668 Reducing the time to convert an analog input sample to a digital code in an analog to digital converter (ADC)  
A stage of a pipeline ADC which uses separate pairs of sampling network and amplifier (in a sample and hold circuit (SHA)) to provide inputs to quantizer (which generates a sub-code) and a switched...
7561095 Pipelined analog-to-digital converter having interleaved sample-and-hold circuits coupled in common  
A semiconductor integrated circuit device provided with a pipeline A-D conversion circuit in which the enhancement of accuracy and the reduction of power consumption are accomplished is provided....
7554470 Self-calibrating pipeline analog-to-digital converter and method of calibrating a pipeline analog-to-digital converter  
A pipeline analog-to-digital converter (ADC) having a digital calibrating circuit is described. The pipeline ADC includes a pipeline converting circuit and a digital calibrating circuit. The...
7535400 Analog error correction for a pipelined charge-domain A/D converter  
A technique for correcting errors in Bucket Brigade Device (BBD)-based pipelined devices, such as Analog-to Digital Converters (ADCs). The gain between pipeline stages is desired to be a specific...
7532147 Analog voltage latch  
An analog voltage latch for use in a controller for controlling a motor equipped electric bicycle, includes a window comparator for comparing an analog voltage latch output and an analog input...
7528759 Pipelined analog-to-digital converter  
One embodiment of the present invention includes a pipelined analog-to-digital converter (ADC) comprising a plurality of pipeline stages. At least one of the plurality of pipeline stages comprises...
7515083 Analog-to-digital converting system  
A novel analog-to-digital converter (ADC) architecture using subranging successive approximation approach is disclosed. The ADC architecture is capable of achieving high sampling rate, low power...
7501972 Reference voltage generation circuit and pipe line analog-to-digital converter using the same  
A reference voltage generation circuit for a plurality of reference generation voltages and a pipe line analog-to-digital converter (ADC) using the same are provided. The reference voltage...
7495596 Multi-channel pipelined signal converter  
A signal converter such as a multi-channel pipelined signal converter includes a plurality of pipelined signal converters and a decision unit. Each of the pipelined signal converters has a...
7482966 Algorithm analog-to-digital converter  
Provided is an algorithm analog-to-digital converter (ADC). The algorithm ADC obtains two digital outputs through different capacitor connections for one analog input signal and adds the digital...
7474238 Analog-to-digital converter  
An A-D converter includes a group of resistors, a group of comparators, an encoder and an output unit. The output unit includes a correction circuit. An inverter constitutes the correction circuit....
7471228 Sharing operational amplifier between two stages of pipelined ADC and/or two channels of signal processing circuitry  
A mechanism for discharging parasitic capacitance at an input of an operational amplifier, which is shared between two stages of a pipelined analog-to-digital converter and/or two channels of...
7471229 Analog-to-digital converter with low latency output path  
An analog to digital converter system includes at least one stage for providing a first full precision, full latency output and a second output providing a less than full latency, less than full...
7471227 Method and apparatus for decreasing layout area in a pipelined analog-to-digital converter  
In accordance with one embodiment, there is provided a pipelined analog-to-digital converter (ADC) device. The pipelined ADC includes a first stage and a second stage. The first and second stages...
7443333 Single stage cyclic analog to digital converter with variable resolution  
A converter ( 200 ) adapted to convert an analog input signal into a digital output signal includes an analog input terminal ( 205 ) for receiving the analog input signal, a Redundant Signed Digit...
7436344 Pipeline A/D converter  
The present invention provides a pipeline A/D converter having resolution, allowable conversion processing rate and power consumption satisfying the requests of a system incorporating the pipeline...
7414564 Enhanced-accuracy converter stages for pipelined signal converter systems  
Converter systems are provided which complement sample capacitors in at least one converter stage with replica capacitors. The replica capacitors are switched to receive replica charges from the...
7408496 Method, apparatus and system sharing an operational amplifier between two stages of pipelined ADC and/or two channels of signal processing circuitry  
A mechanism for discharging parasitic capacitance at an input of an operational amplifier, which is shared between two stages of a pipelined analog-to-digital converter and/or two channels of...
7382308 Reference buffer using current mirrors and source followers to generate reference voltages  
A reference buffer includes a first current mirror, a second current mirror, a first source follower coupled in series to a branch of the first current mirror and receiving a first initial...
7382302 A/D converter with voltage generation circuits  
An A/D converter has a first voltage generation circuit, a second voltage generation circuit, a comparator, first and second switch circuits connected in series between an input terminal of an...
7372389 Analogue to digital converter, and method of analogue to digital conversion  
Embodiments of the invention provide an analogue to digital converter comprising a dual differential digital to analogue converter (DAC) having first and second digital inputs for first and second...
7345615 Cyclic multi-bit A/D conversion array and image sensor  
An A/D conversion array for an image sensor, in which the number of amplifiers and capacitors are decreased, compared with the conventional cyclic type, and a function to cancel the noise generated...
7336214 Analog to digital converter circuit with offset reduction and image sensor using the same  
An image sensor may be improved by using ADCs that compensate for the effect of comparator input offset on comparator decisions. Offset compensation may be implemented in an ADC by using an...
7330145 Dual residue pipelined analog-to-digital converter  
Consistent with an example embodiment, there is dual residue pipelined AD converter comprising a cascade of, preferably balanced, switched capacitor dual residue converter stages for producing from...
7289055 Analog-digital converter with gain adjustment for high-speed operation  
An input analog signal is fed to an amplifier circuit and an AD converter circuit. The AD converter circuit converts the input analog signal into a digital value of a predetermined number of bits,...
7286074 Semiconductor integrated circuit for communication including analog-to-digital conversion circuit  
A semiconductor integrated circuit having a built-in A/D conversion circuit which enables, where the A/D conversion circuit is to be built into a semiconductor chip, the required capacitance of the...
7271758 Gain adjust for SAR ADC  
A SAR analog-to-digital Converter (ADC) is disclosed with variable gain having a SAR capacitor array with a plurality of switched capacitors therein with varying weights and a SAR controller for...
7265704 Domino analog to digital conversion architecture  
An analog to digital conversion architecture defining a process of converting an analog signal into equivalent digital signal which uses a method comprising of a set of functional units, each...
7265705 Opamp and capacitor sharing scheme for low-power pipeline ADC  
A first stage circuit for a high-speed, high-resolution pipeline analog-to-digital converter (ADC) implements operational amplifier (opamp) sharing and capacitor sharing to combine the...
7248198 Reference voltage driving circuit and pipelined analog to digital converter including same  
A reference voltage driving circuit and a pipelined analog to digital converter including the reference voltage driving circuit capable of providing a stable reference voltage even during a high...
7233275 Analog-to-digital converter with input signal range greater than supply voltage and extended dynamic range  
An analog-to-digital converter device capable of measuring inputs beyond a supply voltage including: an N bit analog-to-digital converter powered by a supply voltage and a reference voltage; a...
7224306 Analog-to-digital converter in which settling time of amplifier circuit is reduced  
A first amplifier circuit samples an input analog signal and holds the sampled signal for a predetermined period of time. A first analog-to-digital converter circuit samples the input analog signal...
7218264 Asynchronous analog to digital converter  
An analog-to-digital converter includes a plurality of analog stages. Each stage produces, in response to analog input, a digital output that corresponds to a most significant bit of the stage's...
7212143 Circuit for selectively analog signals into digital codes  
A circuit for selectively converting at least one analog signal into corresponding digital codes. The circuit includes a management block having a plurality of inputs, each adapted for receiving a...
7181635 Method for placing a device in a selected mode of operation  
A method for placing a device in a selected mode of operation. The method comprises the steps of initializing a device select signal into a first logic state, asserting the device select signal in...
7170438 Decision feedback equalizer with bi-directional mode and lookup table  
In one embodiment, a decision feedback equalizer helps mitigate intersymbol interference in a bi-directional signaling environment. In the particular embodiment, the decision feedback equalizer...
7148833 Sharing operational amplifier between two stages of pipelined ADC and/or two channels of signal processing circuitry  
A mechanism for discharging parasitic capacitance at an input of an operational amplifier, which is shared between two stages of a pipelined analog-to-digital converter and/or two channels of...
7148834 Analog/digital converter and method for operating an analog/digital converter  
The invention provides a clocked analog/digital converter for successive approximation which is designed using a jointly used amplifier and a dynamic range expansion facility by means of a special...
7148831 Variable quantization ADC for image sensors  
An A/D converter suitable for use in a system in which the signal power of noise increases with the signal power of the signal, such as an imaging system, utilizes a variable quantization system...
7129881 Pipeline analog to digital converter  
The pipeline analog-to-digital converter has a number of subsequent comparator stages ( 2 ) where the thresholds of the comparator stages are adjusted in accordance with the digital conversion...
7126523 Reducing errors and power consumption in a multi-stage analog to digital converter (ADC) using amplifier sharing techniques  
An amplifier sharing technique in an analog to digital converter (ADC) in which a cascaded combination of a pre-amplifier and main amplifier is used to provide the required amplification for a...
7098834 Multi-mode analog to digital converter  
A multi-mode analog to, digital converter (ADC). The novel ADC includes an input terminal for receiving an analog input signal; a plurality of processing stages, each processing stage adapted to...
7095352 Analog-to-digital converter including a plurality of amplifier circuits  
An AD converter includes therein a plurality of amplifier circuits such as first to fourth amplifier circuits. Among the plurality of amplifier circuits an amplifier circuit that requires higher...
7084804 Background calibration of pipelined ADCs using flow control  
A modified pipeline architecture allows the simple implementation of a foreground calibration technique with the continuous calibration benefits of the background calibration techniques. To...
7084803 Analog-digital conversion method and analog-digital converter  
A first amplifier circuit amplifies an input signal by a factor of α. A first AD converter circuit is configured at an LSB voltage of VA and converts an input analog signal into a digital value of...
7042373 Error measuring method for digitally self-calibrating pipeline ADC and apparatus thereof  
A pipeline ADC includes a pipeline structure having a plurality of analog-to-digital converting units cascaded in series; and a correcting unit coupled to the pipeline structure for correcting an...
Matches 1 - 50 out of 196 1 2 3 4 >