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Analog Devices Global patents

Recent patent applications related to Analog Devices Global. Analog Devices Global is listed as an Agent/Assignee. Note: Analog Devices Global may have other listings under different names/spellings. We're not affiliated with Analog Devices Global, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Analog Devices Global-related inventors

Fast settling capacitive gain amplifier circuit

A capacitive gain amplifier circuit includes two sets of Miller capacitors and two output stage differential amplifier circuits. A first set of Miller capacitors is used to compensate the first output stage differential amplifier circuit during a first phase that resets the first output stage differential amplifier circuit. The second... Analog Devices Global

Fast settling capacitive gain amplifier circuit

A capacitive gain amplifier circuit amplifies an input signal by a pair of differential amplifier circuits couples in series. The first differential amplifier circuit is reset during an autozero phase while disconnected from the second differential amplifier circuit, and the first and second differential amplifier circuits are connected together in... Analog Devices Global

Apparatus and methods for a difference amplifier

Apparatus and methods for a difference amplifier are provided. In certain examples, the difference amplifier can provide high common mode rejection without differential signal attenuation. In an example, a difference amplifier circuit can include first and second amplifiers, first and second buffer amplifiers, a first feedback voltage divider coupled between... Analog Devices Global

Electrochemical sensor, and a forming an electrochemical sensor

An electrochemical sensor is provided which may be formed using micromachining techniques commonly used in the manufacture of integrated circuits. This is achieved by forming microcapillaries in a silicon substrate and forming an opening in an insulating layer to allow environmental gases to reach through to the top side of... Analog Devices Global

Proportional to absolute temperature reference circuit and a voltage reference circuit

The present disclosure relates to a PTAT voltage reference circuit and a temperature independent voltage reference circuit in which the effect of transistor base currents on the circuit output is compensated for. This is achieved by a pair of compensation resistors. The base current from one of the pair of... Analog Devices Global

Methods of manufacture of an inductive component and an inductive component

The disclosure relates to the manufacture of inductive components, in particular transformers, using a combination of microfabrication techniques and discrete component placement. By using a prefabricated core, the core may be made much thicker than one that is deposited using microfabrication techniques. As such, saturation occurs later and the efficiency... Analog Devices Global

Compact integrated device packages

An integrated device package sized and shaped to fit in a small space, such as within a body lumen or cavity of a human patient, is disclosed. The integrated device package includes a package substrate and integrated device dies. The first and second integrated device dies are angled relative to... Analog Devices Global

Antenna array calibration systems and methods

Aspects of this disclosure relate to an array calibration system and method using probes disposed between antenna elements. In certain embodiments, the calibration is performed by measuring near-field relative phase and amplitude measurements of the antenna elements and using such relative measurements to adjust the amplitude and phase of the... Analog Devices Global

Switchable transformer-based balun

A transformer-based balun circuit s disclosed herein. The balun can be implemented using a spiral transformer, where primary and secondary transformer windings can be inductively coupled and can be implemented on the same metal layer (or different metal layers, e.g. vertically adjacent metal layers). The balun can further include a... Analog Devices Global

Radio frequency transmitter noise cancellation

Transmitter noise cancellation may be applied on a channel by channel basis to active channels of an incoming radio frequency signal received at a receiver. A noise cancellation filter may be provided for each active channel in a predetermined signal band. Applying noise cancellation on a per active channel basis... Analog Devices Global

Systems and methods of monitoring electrodermal activity (eda) using an ac signal and discrete fourier transform (dft) analysis

Systems and methods of monitoring electrodermal activity (EDA) in human subjects suitable for use in wearable electronic devices. An EDA monitoring system can include first and second dry electrodes, an alternating current (AC) excitation signal source, a trans-impedance amplifier, an analog-to-digital (A-to-D) converter, a discrete Fourier transform (DFT) processor, and... Analog Devices Global

Radio frequency isolator

Radio frequency (RF) isolators are described, coupling circuit domains operating at different voltages. The RF isolator may include a transmitter which emits a directional signal toward a receiver. Layers of materials having different dielectric constants may be arranged to confine the emission along a path to the receiver. The emitter... Analog Devices Global

Galvanically isolated data isolator with improved common mode transient rejection

A transformer based digital isolator is provided that has improved immunity to common mode interference. The improved immunity is provided by placing the transformer in association with an H-bridge drive circuit, and taking additional effort to tailor the on state resistance of the transistors to control a common mode voltage... Analog Devices Global

Mems switch

Several features are disclosed that improve the operating performance of MEMS switches such that they exhibit improved in-service life and better control over switching on and off.... Analog Devices Global

Power regulation system for energy harvesters

According to some aspects, a power regulation system for energy harvesters that lacks a battery is provided. In some embodiments, the power regulation system may receive power from multiple energy harvesters that generate energy from different sources, such as wind currents and ambient light. In these embodiments, the power regulation... Analog Devices Global

Apparatus for and providing measurements of uncertainty in respect of a transfer function

An apparatus is provided that can estimate a transfer function, for example of current measurement systems, voltage measurement systems and power measurement systems, and also provide an estimate of certainty about the transfer function. This enables customers to have confidence that they are not being overcharged for electricity.... Analog Devices Global

Current sensing in two-dimensional area sensors

Aspects of the embodiments are directed an analog front end circuit (AFE circuit), the AFE circuit including a beamforming circuit configured to receive as an input a plurality of receiver inputs, the receiver inputs coupled to a sensor element. The beamforming circuit can include a plurality of receiver sub-circuits, each... Analog Devices Global

Current sensor and a manufacturing a current sensor

The present disclosure provides an improved Rogowski-type current sensor. In order to allow the sensing coil and the compensation wire to overlap, the sensor is produced using two boards. The current sensing coil is provided on one board, and the compensation wire is provided on another board. The coil and... Analog Devices Global

Buffer with increased headroom

Provided herein are amplifiers, such as buffers, with increased headroom. An amplifier stage includes a follower transistor and current source configured to receive a power supply voltage comprising an alternating current component and a direct current component. The alternating current component of the power supply voltage has substantially the same... Analog Devices Global

Buffer, and digital to analog converter in combination with a buffer

A buffer is provided where a part of the buffer is implemented in switched capacitor or other analog discrete time processing circuitry and a dynamic response characteristic, such as an effective gain or charge transfer coefficient between the input stage and an output stage is digitally controllable. This means that... Analog Devices Global

Digital to analog converter including logical assistance

Digital to analog converters (DAC) are used to convert digital signals to analog values. The digital system providing data to the analog converter may be highly tasked. A DAC is provided with some in built logic to assist in reducing the load on the devices driving the DAC. The DAC... Analog Devices Global

Fast regulator architecture having transistor helper

Apparatus and methods for assisting a voltage regulator. In an example, a voltage regulator can include an error amplifier configured to compare a reference voltage with a representation of an output voltage of the voltage regulator, an output transistor coupled to a supply voltage and configured to receive an output... Analog Devices Global

Chip including over-voltage and surge protection

An integrated circuit is provided in which a surge protector, protecting against modest over-voltage events which may contain a lot of energy, and an electrostatic discharge (ESD) protector, protecting against high voltage events that may contain only a little energy, are provided within the integrated circuit package. The two types... Analog Devices Global

Wideband digital predistortion

Various examples are directed to systems and methods for wideband digital predistortion. A digital pre-distortion circuit may be programmed to receive a complex baseband signal and generate a pre-distorted signal. Generating the pre-distorted signal may comprise applying to the complex baseband signal a first correction for an Nth order distortion... Analog Devices Global

Mixed-mode digital predistortion

Various examples are directed to systems and methods for digital predistortion (DPD). A linear digital predistortion (DPD) circuit may be programmed to generate a pre-distorted signal linear component based at least in part on a complex baseband signal. A nonlinear DPD circuit may be programmed to generate a pre-distorted signal... Analog Devices Global

Integrated circuit with on chip variation reduction

Many electronic circuits rely on the ratio of one component to other components being well defined. Current flow in component can warm the component causing its electrical properties to change, for example the resistance of a resistor may increase due to self-heating as a result of current flow. The present... Analog Devices Global

Bus driver / line driver

A bus driver is provided that can withstand over voltages being applied to its output terminal without the protection circuit detracting from the voltage swing that can be provided by the driver. The circuit arrangement also allows transistors having good on state resistance and large tolerance of drain-to-source voltages to... Analog Devices Global

Physical isolation between mac and phy ethernet connections

An apparatus is provided comprising: a first power domain that includes a first component that operates at a first voltage level; a second power domain that includes a media access controller (MAC) that operates at a second voltage level; and a third power domain that includes a physical media access... Analog Devices Global

Apparatuses for communication systems transceiver interfaces

An integrated circuit device for protecting circuits from transient electrical events is disclosed. An integrated circuit device includes a semiconductor substrate having formed therein a bidirectional semiconductor rectifier (SCR) having a cathode/anode electrically connected to a first terminal and an anode/cathode electrically connected to a second terminal. The integrated circuit... Analog Devices Global

Detecting a presence of a target in a room

Apparatus for detecting a presence of a target in a room is disclosed. The apparatus includes a motion-sensitive passive infrared (PIR) sensor, an imaging sensor, and a control unit. The PIR sensor is adapted to provide a motion signal, while the imaging sensor is adapted to generate at least a... Analog Devices Global

Current measurement

Current measurement apparatus comprises a measurement arrangement and a signal source. The measurement arrangement is configured to measure a current signal drawn by a load. The signal source is operative to apply a reference input signal to the measurement arrangement whereby an output signal from the measurement arrangement comprises a... Analog Devices Global

Wear-out monitor device

The disclosed technology generally relates to integrated circuit devices with wear out monitoring. An integrated circuit device includes a core circuit and a wear-out monitor device. The wear-out monitor device configured to adjust an indication of wear out of the core circuit regardless of whether the core circuit is activated... Analog Devices Global

Wear-out monitor device

The disclosed technology generally relates to integrated circuit devices with wear out monitoring capability. An integrated circuit device includes a wear-out monitor device configured to record an indication of wear-out of a core circuit separated from the wear-out monitor device, wherein the indication is associated with localized diffusion of a... Analog Devices Global

Mixer with improved linearity

Mixers with improved linearity are disclosed. A diode or FET ring mixer is implemented with at least one parallel shunt element coupled with the ring mixer, the shunt element providing shunt to a diode or FET, for example, to reduce the effect of nonlinear or off resistance and/or capacitance. Linearity,... Analog Devices Global

Network connectivity for constrained wireless sensor nodes

Wireless sensor nodes for enabling network connectivity in a wireless sensor network system are disclosed herein. An exemplary method includes receiving a Lightweight Machine-to-Machine (LWM2M) network packet from a network node over a network; using a media access control (MAC) layer to route the LWM2M network packet to a sensor... Analog Devices Global

10/05/17 / #20170288650

Tank circuit and frequency hopping for isolators

Embodiments of the present disclosure may provide a circuit comprising a tank circuit. The tank circuit may include an inductor having a pair of terminals, a first pair of transistors, and a first pair of capacitors. Each transistor may be coupled between a respective terminal of the inductor and a... Analog Devices Global

09/28/17 / #20170276514

Offset compensation for magnetic field detector

Apparatus and methods provide sensing of quadrants, angles, or distance using magnetoresistive elements. A quadrant or angle sensor can have magnetoresistive elements split into multiple angles to generate an output with reduced harmonics. A distance sensor can have magnetoresistive elements split and spaced apart to generate an output with reduced... Analog Devices Global

09/28/17 / #20170276740

Magnetic field detector

Apparatus and methods provide sensing of quadrants, angles, or distance using magnetoresistive elements. A quadrant or angle sensor can have magnetoresistive elements split into multiple angles to generate an output with reduced harmonics. A distance sensor can have magnetoresistive elements split and spaced apart to generate an output with reduced... Analog Devices Global

09/28/17 / #20170279444

Combined isolator and power switch

A combined isolator and power switch is disclosed. Such devices are useful in isolating low voltage components such as control compilers from motors or generators working at high voltages. The combined isolator and power switch includes circuits to transfer internal power from its low voltage side to the switch driver... Analog Devices Global

09/21/17 / #20170265794

Blood oxygenation sensor with led current modulation

A blood oxygenation sensor is provided comprising: a first current-powered light source to produce light having a first wavelength; a second current-powered light source to produce light having a second wavelength; a light sensor to produce a current signal having a magnitude that is indicative of intensity of light incident... Analog Devices Global

09/21/17 / #20170269623

Reducing voltage regulator transistor operating temperatures

Methods and apparatus to reduce localized transistor operating temperature increases in fully integrated voltage regulator circuits are provided. Transistor self-heating effects are reduced by dispersing heat more evenly over the integrated circuit die, via use of nested voltage regulator circuits and/or use of more than one transistor in a voltage... Analog Devices Global

09/14/17 / #20170261345

Multiturn sensor arrangement and readout

A system includes a multiturn counter that can store a magnetic state associated with a number of accumulated turns of a magnetic field. The multiturn counter includes a plurality of magnetoresistive elements electrically coupled in series with each other. A matrix of electrical connections is arranged to connect magnetoresistive elements... Analog Devices Global

09/14/17 / #20170264422

System and reducing false preamble detection in a communication receiver

An apparatus comprising: a signal detection circuit determine a count reached by a counter between successive detected edge signals and to provide an indication of whether successive detected edge signals are separated from each other by at least a prescribed time interval; a clock circuit that produces clock signal pulses... Analog Devices Global

09/07/17 / #20170255221

Voltage reference circuit

The present disclosure relates to a method and apparatus for generating a voltage reference. More particularly the present disclosure relates to a methodology and circuitry configured to provide an output signal that combines a proportional to absolute temperature component with a complimentary to absolute temperature component to generate a stable... Analog Devices Global

09/07/17 / #20170256954

Current limit control in hot swap controllers

In an example, a device for controlling an electronic switch between a power supply and a load includes a first device pin configured to be in communication with the electronic switch, a sensing circuit configured to be connected to an input voltage and to measure a current to the load,... Analog Devices Global

09/07/17 / #20170257031

Inductor current based mode control for buck-boost converters

Apparatus and methods for controlling voltage converter are provided, in an example, a switched-mode DC-DC voltage converter can include an inductor, at least four switches coupled to the inductor and configured to direct current through the inductor to provide a desired output voltage at an output voltage terminal of the... Analog Devices Global

09/07/17 / #20170257086

Resistor controlled timer circuit with gain ranging

A timer circuit is provided comprising: a resistor; a programmable gain circuit coupled to amplify the reference level based upon a resistor and a selected gain; a detection circuit coupled to identify the amplified reference level based upon a resistor; a selection circuit configured to select the gain based at... Analog Devices Global

08/31/17 / #20170249820

Occupancy sensor

System and techniques for an occupancy sensor are described herein. Images from a camera can be received. Here, the camera has a certain a field of view. A proximity indicator from a proximity detector can be received when an object enters the field of view. The images from the camera... Analog Devices Global

08/31/17 / #20170250682

Compensation of baseline wander

A circuit for compensation of baseline voltage wander operating at an input of an isolator is disclosed. The circuit can compensate electronically the frequency response of an isolation circuit (e.g., a transformer) by increasing the pass band in the low frequency region in order to minimize the baseline wander caused... Analog Devices Global

08/24/17 / #20170241939

Susceptance measurement for identifying biochemical sensors

Subject matter herein can include identifying a biochemical test strip assembly electrically, such as using the same test circuitry as can be used to perform an electrochemical measurement, without requiring use of optical techniques. The identification can include using information about a measured susceptance of an identification feature included as... Analog Devices Global

08/24/17 / #20170244388

Apparatus and methods for high linearity voltage variable attenuators

Provided herein are apparatus and methods for high linearity voltage variable attenuators (VVAs). In certain configurations, a high linearity VVA includes multiple shunt arms or circuits that operate in parallel with one another between a signal node and a first DC voltage, such as ground. Thus, the shunt arms are... Analog Devices Global

08/17/17 / #20170235692

Data communication interface for processing data in low power systems

Improvements over existing data collection interfaces disclosed herein include, among other things, additional logic blocks (and associated timers, state machines, and registers) to off-load data collection and data processing prior to waking a microprocessor from a sleep mode. For example, an improved data collection interface collects a predetermined number of... Analog Devices Global

08/17/17 / #20170237268

Analog/digital converter with charge rebalanced integrator

A charge rebalancing integration circuit can help keep an output node of a front-end integration circuit within a specified range, e.g., without requiring resetting of the integration capacitor. The process of monitoring and rebalancing the integration circuit can operate on a much shorter time base than the integration time period,... Analog Devices Global

08/10/17 / #20170225942

Active opening mems switch device

Microelectromechanical systems (MEMS) switches are described. The MEMS switches can be actively opened and closed. The switch can include a beam coupled to an anchor on a substrate by one or more hinges. The beam, the hinges and the anchor may be made of the same material in some configurations.... Analog Devices Global

07/20/17 / #20170207801

Blocker detection based automatic gain control

Modular gain control based on blocker signal detection is disclosed herein. In a multi-stage gain control scheme for a receiver, the input stage gain or the pre-mixing stage gain can be controlled for effective blocker rejection based on detecting a blocker signal at a mixer, and the output stage gain... Analog Devices Global

07/20/17 / #20170207802

Highly integrated radio frequency transceiver

For small cells, transceivers demand high performance while maintaining system efficiency. The present disclosure describes a highly integrated cellular transceiver that offers such features by providing one or more digital functions on-chip, onto the same die in the cellular transceiver. Effectively, the scope and boundary of the cellular transceiver is... Analog Devices Global

07/20/17 / #20170207907

Circuits, systems, and methods for synchronization of sampling and sample rate setting

Techniques for synchronization between multiple sampling circuits using a single pin interface to control an output data rate are described. The frequency or rate of a signal on this pin can be automatically determined and used to accomplish the required output data rate. Also described are techniques for using a... Analog Devices Global

07/13/17 / #20170201091

Power node communication for device detection and control

Apparatus and techniques described herein can include a load circuit comprising a direct current (DC) input terminal, and a source circuit comprising a direct current (DC) output terminal coupled to the DC input terminal of the load circuit. The source circuit can include a source control circuit configured to provide... Analog Devices Global

07/06/17 / #20170194001

Microphone circuit assembly and system with speech recognition

The present invention relates in one aspect to a microphone circuit assembly for an external application processor such as a programmable Digital Signal Processor. The microphone circuit assembly comprises a microphone preamplifier and analog-to-digital converter generate microphone signal samples at a first predetermined rate. A speech feature extractor is configured... Analog Devices Global

07/06/17 / #20170194911

Low-voltage low-power variable gain amplifier

In high speed communication applications, e.g., optical communication, a variable gain amplifier is used for input signal amplitude normalization or for linear equalization. Traditionally a bipolar Gilbert multiplier circuit is used. When moving towards a low-power application, a modified circuit topology is implemented to reduce the minimum supply voltage requirement... Analog Devices Global

06/22/17 / #20170176507

Active antenna system and methods of determining intermodulation distortion performance

An active antenna test system comprising an active antenna unit comprising: a test signal generator arranged to generate at least a first test signal and at least one second test signal; a plurality of transmitter modules operably coupled to the test signal generator wherein the plurality of transmitter modules are... Analog Devices Global

06/22/17 / #20170178781

Devices, systems and methods including magnetic structures

A magnetic device may include a magnetic structure, a device structure, and an associated circuit. The magnetic structure may include a patterned layer of material having a predetermined magnetic property. The patterned layer may be configured to, e.g., provide a magnetic field, sense a magnetic field, channel or concentrate magnetic... Analog Devices Global

06/22/17 / #20170179968

Protection circuits for tunable resistor at continuous-time adc input

Continuous-time analog-to-digital converters (ADCs) such as continuous-time delta-sigma ADCs and continuous-time pipeline ADCs, has input resistor structure at the input. The input resistor structure is typically tunable, and the tunability is usually provided by metal-oxide semiconductor field effect transistor (MOSFET) switches. Core MOSFETs, which has a terminal-to-terminal voltage <1.0V, is... Analog Devices Global

06/22/17 / #20170179969

Adaptive digital quantization noise cancellation filters for mash adcs

For continuous-time multi-stage noise shaping analog-to-digital converters (CT MASH ADCs), quantization noise cancellation often requires accurate estimation of transfer functions, e.g., a noise transfer function of the front end modulator and a signal transfer function of the back end modulator. To provide quantization noise cancellation, digital quantization noise cancellation filters... Analog Devices Global

06/22/17 / #20170179970

Flash analog-to-digital converter calibration

An analog-to-digital converter (ADC) is a device that can include a reference shuffler and a loop filter. An ADC can achieve better performance with incremental adjustment of a pointer of the reference shuffler, changing coefficients of the loop filter, and storing calibration codes of the ADC in a non-volatile memory.... Analog Devices Global

Patent Packs
06/22/17 / #20170179971

Frequency-domain adc flash calibration

A flash analog-to-digital converter (ADC) includes comparators that convert an analog input signal to a digital output signal. Offsets of these comparators introduce noise and can hurt the performance of the ADC. Thus, these comparators are calibrated using calibration codes. Conventional calibration methods determine these calibration codes by removing the... Analog Devices Global

06/22/17 / #20170179975

Dither injection for continuous-time mash adcs

For continuous-time multi-stage noise shaping analog to digital converters (CT MASH ADCs), quantization noise cancellation often requires estimation of transfer functions, e.g., a noise transfer function of the front end modulator. To estimate the noise transfer function, a dither signal can be injected in the front end modulator. However, it... Analog Devices Global

06/15/17 / #20170169929

Inductive component for use in an integrated circuit, a transformer and an inductor formed as part of an integrated circuit

Inductive components, such as transformers, can be improved by the inclusion of a magnetic core. However, the benefit of having a core is lost if the core enters magnetic saturation. One way to avoid saturation is to provide a bigger core, but this is costly in the context of integrated... Analog Devices Global

06/01/17 / #20170154715

Electromagnetic flow sensor interface including sensor drive circuit

An interface circuit to an electromagnetic flow sensor is described. In an example, it can provide a DC coupled signal path from the electromagnetic flow sensor to an analog-to-digital converter (ADC) circuit. Examples with differential and pseudo-differential signal paths are described. Examples providing DC offset or low frequency noise compensation... Analog Devices Global

06/01/17 / #20170155362

Local oscillator paths

Provided herein are oscillator paths between an oscillator and mixers. In an embodiment, the oscillator paths include a first path between an oscillator and a first mixer and a second path between the oscillator and the second mixer, in which the first path is enabled in a first state (e.g.,... Analog Devices Global

06/01/17 / #20170155414

Low noise transconductance amplifiers

Provided herein are apparatus and methods for transconductance amplifiers, such as split cascode low-noise transconductance amplifiers (LNTAs). In an embodiment, an LNTA includes split current paths each coupled to a different mixer by way of a different alternating current (AC) coupling capacitor. The split current paths of the LNTA can... Analog Devices Global

05/25/17 / #20170149361

Piezoelectric impact energy harvesting

An electronic circuit can be coupled to an energy harvesting device. The output of the energy harvesting device can provide a damped oscillating waveform elicited from a transient stimulus applied to the energy harvesting device, such as in response to mechanical shock or mechanical impact excitation. A first switch can... Analog Devices Global

05/18/17 / #20170141736

Broadband envelope tracking

An envelope tracking scheme can be used, such as to modulate a supply node of a power amplifier circuit to improve efficiency. For example, a magnitude or amplitude envelope of a signal to be modulated can be scaled and used to drive a node, such as a drain, of the... Analog Devices Global

05/11/17 / #20170131368

Thin film resistive device for use in an integrated circuit, an integrated circuit including a thin film resistive device

Thin film resistive sensors typically include a number of resistive components. These components should be well matched in order for the sensor to provide accurate readings. When a sensor is incorporated within an integrated circuit, the resistive components may be formed over, or under, metallic traces that form part of... Analog Devices Global

05/11/17 / #20170133041

Low-complexity voice activity detection

Many processes for audio signal processing can benefit from voice activity detection, which aims to detect the presence of speech as opposed to silence or noise. The present disclosure describes, among other things, leveraging energy-based features of voice and insights on first and second formant frequencies of vowels to provide... Analog Devices Global

05/11/17 / #20170133363

Fet - bipolar transistor combination

A transistor switch device is provided that exhibits relatively good voltage capability and relatively easy drive requirements to turn the device on and off. This can reduce transient drive current flows that may perturb other components.... Analog Devices Global

05/11/17 / #20170133841

Overvoltage protection device, and a galvanic isolator in combination with an overvoltage protection device

Components can be damaged if they are exposed to excess voltages. A device is disclosed herein which can be placed in series with a component and a node that may be exposed to high voltages. If the voltage becomes too high, the device can autonomously switch into a relatively high... Analog Devices Global

05/11/17 / #20170134019

Fet - bipolar transistor combination, and a switch comprising such a fet - bipolar transistor combination

A transistor switch device is provided that exhibits relatively good voltage capability and relatively easy drive requirements to turn the device on and off. This can reduce transient drive current flows that may perturb other components.... Analog Devices Global

05/04/17 / #20170126222

Hot swap circuit management techniques for power line disturbances and faults

A device for controlling an electronic switch between a power supply and a load includes a sensing circuit to measure a current to the load and a control circuit to control operation of the electronic switch if the current exceeds a current limit. The control circuit includes a normal current... Analog Devices Global

04/27/17 / #20170117084

Dielectric stack, an isolator device and forming an isolator device

An isolator device is provided comprising a body of first dielectric material between the first and second conductors, such as primary and secondary coils of a micro-transformer. A region of second dielectric material is provided between the body of first dielectric material and at least one of the first and... Analog Devices Global

Patent Packs
04/27/17 / #20170117602

Isolator and forming an isolator

An isolator device and a corresponding method of forming the isolator device to include first and second electrodes, a layer of first dielectric material between the first and second electrodes, and at least one region of second dielectric material between the layer of first dielectric material and at least one... Analog Devices Global

04/13/17 / #20170102418

Method and system for continuous off chip capacitor detection for linear regulators

Various embodiments efficiently detect the presence of an external capacitor electrically coupled to the output of a voltage regulator by perturbing the voltage output of the voltage regulator while the regulator is in operation and supplying, or ready to supply, regulated voltage to a load, and detecting the reaction of... Analog Devices Global

04/13/17 / #20170104502

Digital predistortion and uptilt and cable communication

Otherwise incompatible digital predistortion and uptilt can be used together, such as in a cable television or other cable communications system having a frequency-dependent signal loss at high frequencies. The predistortion can be used to compensate for a nonlinear gain compression of a power amplifier at higher frequencies. Additional uplift... Analog Devices Global

03/30/17 / #20170089966

Capacitance measurement

Embodiments of the present invention may provide a method of measuring an unknown capacitance of a device. The method may comprise the steps of driving a test signal to a circuit system that includes a current divider formed by the device with unknown capacitance and a reference capacitor; mirroring a... Analog Devices Global

03/30/17 / #20170093375

Small area and low power iir filter structure

Embodiments of the present disclosure provide a digital filter module for use in receivers, particularly suitable for use in a narrow-band electromagnetic receiver. Design of the module is based on a recognition that providing to the module samples of a signal received by a receiver and sampled at a sampling... Analog Devices Global

03/23/17 / #20170085263

Active device divider circuit with adjustable iq

An active voltage divider circuit is provided comprising: a first node; a second node; a third node; multiple FET load devices coupled in series between the first node and the second node; multiple first switches, each associated with a different FET load device and configured to selectably couple a respective... Analog Devices Global

03/16/17 / #20170074656

Dual mode gyroscope

A BAW gyroscope is configured to operate with two pairs of orthogonal modes instead of a single pair in order to mitigate the impact of changes in gaps (e.g., introduced from external stresses such as thermal gradients, external shocks, mechanical stress/torque, etc.). Specifically, the BAW gyroscope resonator is configured to... Analog Devices Global

03/09/17 / #20170067962

Remote evaluation tool

Remote evaluation, e.g., web-based evaluation, lowers the evaluation barrier by allowing an engineer to gain experience with an integrated circuit (IC) using a client (e.g. a web browser) on a remote computer (e.g., a machine remote from the IC being evaluated but local to the engineer) to activate a test... Analog Devices Global

02/16/17 / #20170047149

Programmable impedance

The present application relates generally to programmable impedances and employs an auxiliary impedance in parallel to a primary programmable impedance to augment the performance of the primary programmable impedance at lower impedance values.... Analog Devices Global

02/09/17 / #20170040959

Apparatus and precharging a load

An output stage of a buffer or an amplifier connected to a switched capacitive load can operate in two phases to perform precharging and fine settling. The precharging and fine settling phases can be synchronized to the switching phases of the switched capacitive load connected to the amplifier. During the... Analog Devices Global

02/09/17 / #20170041552

Method of controlling a motor driven system, controlling a motor driven system and a motor driven system controlled in accordance with the disclosed method

Actuators are used to move a variety of objects to desired positions. It is generally desirable that they can do this quickly without exhibiting overshoot or ringing. Some actuators are required to respond very quickly and examples of these are voice coil drivers used to move lenses in autofocus cameras... Analog Devices Global

01/26/17 / #20170023506

Control circuit for use with a four terminal sensor, and measurement system including such a control circuit

A control circuit for use with a four terminal sensor, the sensor having first and second drive terminals and first and second measurement terminals, the control circuit arranged to drive at least one of the first and second drive terminals with an excitation signal, to sense a voltage difference between... Analog Devices Global

01/26/17 / #20170025497

Localized strain relief for an integrated circuit

An integrated circuit may include a semiconductor die having a trench formed in a surface of the semiconductor die. One or more circuit components may be formed on the surface of the semiconductor die. The trench can extend into the semiconductor die next to at least one circuit component. The... Analog Devices Global

01/26/17 / #20170025594

Thermoelectric devices

An embodiment of a thermoelectric device may include a plurality of thermoelectric cells disposed between first and second planes. Each of the thermoelectric cells may include a thermoelectric element formed from a thermoelectric material of a single semiconductor type, the thermoelectric element including a first end, a second end, and... Analog Devices Global

01/26/17 / #20170025996

Computationally efficient arc detector with coherent sampling

Switching interference is a primary artifact which affects the accuracy of arc detectors. To address switching interference, conventional arc detectors employ computationally intensive techniques which are often designed specifically for a target application. Thus, conventional arc detectors require a significant amount of hardware to accurately detect arc faults, which can... Analog Devices Global

01/12/17 / #20170011261

Video processing for human occupancy detection

Many conventional video processing algorithms attempting to detect human presence in a video stream often generate false positives on non-human movements such as plants moving in the wind, rotating fan, etc. To reduce false positives, a technique exploiting temporal correlation of non-human movements can accurately detect human occupancy while reject... Analog Devices Global

01/12/17 / #20170012631

Phase-locked loop having a multi-band oscillator and calibrating same

A phase-locked loop (PLL) comprising a multi-band oscillator and a memory configured to store control input for the oscillator. The PLL is operable in a calibration mode in which the PLL is configured to acquire a frequency controlled word (FCW) for the PLL corresponding to a frequency generated by the... Analog Devices Global

01/05/17 / #20170003704

Low power bias current generator and voltage reference

A bias current generators that may be implemented in low power environments is described. The current generator can be implemented without using resistors and may be used to generate reference currents and voltages. It may also be used to generate voltage references where the output of the circuit is to... Analog Devices Global

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