公开(公告)号：US11658621B2

公开(公告)日：2023-05-23

申请号：US16829768

申请日：2020-03-25

申请人： ANALOG DEVICES, INC.

发明人： Ralph D. Moore ,  Jesse Bankman

IPC分类号： H03F3/45 ,  H03F3/185 ,  H03G3/30 ,  H03G1/00

CPC分类号： H03F3/185 ,  H03F3/45183 ,  H03F3/45201 ,  H03G1/0088 ,  H03G3/301 ,  H03F2203/45288 ,  H03F2203/45488 ,  H03F2203/45506

摘要： Provided herein are apparatus and methods for a multi-stage signal-processing circuit. The signal-processing circuit can include multiple configurable stages that can be cascaded and configured to process an input signal. Control circuitry can be used to select an output of the configurable stages. Serial data can be recovered with good signal integrity using a signal monitor with the configurable stages by virtually placing the signal monitor on a buffered output node.

公开(公告)号：US11656193B2

公开(公告)日：2023-05-23

申请号：US17346049

申请日：2021-06-11

申请人： Analog Devices International Unlimited Company ,  Analog Devices, Inc.

发明人： Yosef Stein ,  Seth S. Kessler ,  Haim Primo

IPC分类号： G01N27/20

CPC分类号： G01N27/20

摘要： Aspects of the present application allow for measurement of a calibrated resistance for a resistive film in a sensing element, such that effects from contact resistance and background resistance drifts due to factors such as temperature, strain or aging can be reduced or eliminated. In some embodiments, by taking a plurality of two-terminal resistance measurements between various pairs of electrodes on a resistive film, a contact-resistance-independent resistance of a reference portion of the resistive film can be determined. Further, a contact-resistance-independent resistance of a sensing portion of the resistive film can be determined based on a plurality of two-terminal resistance measurements between pairs of electrodes. The resistance of the reference portion can be removed from the measured resistance of the sensing portion, such that variations in the reference portion resistance that are not caused by a sensed environmental condition may be compensated.

公开(公告)号：US20230154875A1

公开(公告)日：2023-05-18

申请号：US18148982

申请日：2022-12-30

申请人： Analog Devices, Inc.

发明人： Daniel Piedra ,  James G. Fiorenza ,  Puneet Srivastava ,  Andrew Proudman ,  Kenneth Flanders ,  Denis Michael Murphy ,  Leslie P. Green ,  Peter R. Stubler

IPC分类号： H01L23/66 ,  H01L27/06 ,  H01L29/20 ,  H01L29/205 ,  H01L29/45 ,  H01L23/48 ,  H01L21/285 ,  H01L29/66 ,  H01L21/8252 ,  H01L29/778

CPC分类号： H01L23/66 ,  H01L21/8252 ,  H01L21/28575 ,  H01L23/481 ,  H01L27/0605 ,  H01L27/0629 ,  H01L28/60 ,  H01L29/205 ,  H01L29/452 ,  H01L29/2003 ,  H01L29/7786 ,  H01L29/66462 ,  H01L23/53214 ,  H01L2223/6616 ,  H01L2223/6683

摘要： Gallium nitride-based monolithic microwave integrated circuits (MMICs) can comprise aluminum-based metals. Electrical contacts for gates, sources, and drains of transistors can include aluminum-containing metallic materials. Additionally, connectors, inductors, and interconnect devices can also comprise aluminum-based metals. The gallium-based MMICs can be manufactured in complementary metal oxide semiconductor (CMOS) facilities with equipment that produces silicon-based semiconductor devices.

公开(公告)号：US11652415B2

公开(公告)日：2023-05-16

申请号：US17325000

申请日：2021-05-19

申请人： Analog Devices, Inc.

发明人： Owen Jong ,  Yingyi Yan ,  Ya Liu ,  Jindong Zhang

IPC分类号： H02M3/158 ,  H02M1/00

CPC分类号： H02M3/158 ,  H02M1/0009 ,  H02M1/0064 ,  H02M3/1584

摘要： A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. In addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.

公开(公告)号：US20230133481A1

公开(公告)日：2023-05-04

申请号：US18148996

申请日：2022-12-30

申请人： Analog Devices, Inc.

发明人： Daniel Piedra ,  James G. Fiorenza ,  Puneet Srivastava ,  Andrew Proudman ,  Kenneth Flanders ,  Denis Michael Murphy ,  Leslie P. Green ,  Peter R. Stubler

IPC分类号： H01L23/66 ,  H01L27/06 ,  H01L29/20 ,  H01L29/205 ,  H01L29/45 ,  H01L23/48 ,  H01L21/285 ,  H01L29/66 ,  H01L21/8252 ,  H01L29/778

摘要： Gallium nitride-based monolithic microwave integrated circuits (MMICs) can comprise aluminum-based metals. Electrical contacts for gates, sources, and drains of transistors can include aluminum-containing metallic materials. Additionally, connectors, inductors, and interconnect devices can also comprise aluminum-based metals. The gallium-based MMICs can be manufactured in complementary metal oxide semiconductor (CMOS) facilities with equipment that produces silicon-based semiconductor devices.

公开(公告)号：US11640367B1

公开(公告)日：2023-05-02

申请号：US17450585

申请日：2021-10-12

申请人： Analog Devices, Inc.

发明人： Wei-Hung Chen

IPC分类号： G06F13/42

摘要： Apparatus and methods for high-speed drivers are provided herein. In certain embodiments, a high-speed driver multiplexes two or more data streams. The high-speed driver is implemented with a mux-then-driver topology that provides multiplexing in a predriver circuit. Thus, the multiplexer is eliminated from the full rate output path to relax timing. Driver amplitude control schemes are also disclosed in which a controllable driver includes a group of differential series source transistor (SST) driver slices that are connected in parallel with one another to drive a pair of output terminals, and a group of attenuator slices that are connected in parallel with one another across the pair of output terminals. Additionally, the controllable driver includes a control circuit that activates an attenuator slice for each SST driver slice that is decommissioned to provide output amplitude control.

公开(公告)号：US20230121532A1

公开(公告)日：2023-04-20

申请号：US17983320

申请日：2022-11-08

申请人： Analog Devices, Inc.

发明人： Sung Ung Kwak ,  Robert Michael Muchsel

IPC分类号： G06N3/063 ,  G06F7/496 ,  G06F7/501 ,  G06F9/30 ,  G06F17/16 ,  G06G7/16 ,  G06N3/065

摘要： An energy-efficient multiplication circuit uses analog multipliers and adders to reduce the distance that data has to move and the number of times that the data has to be moved when performing matrix multiplications in the analog domain. The multiplication circuit is tailored to bitwise multiply the innermost product of a rearranged matrix formula generate a matrix multiplication result in form of a current that is then digitized for further processing.

公开(公告)号：US20230117529A1

公开(公告)日：2023-04-20

申请号：US18066053

申请日：2022-12-14

申请人： Analog Devices, Inc.

发明人： Jesper STEENSGAARD-MADSEN

IPC分类号： H03M1/46 ,  H03M1/12

摘要： Herein disclosed is an example analog-to-digital converter (ADC) and methods that may be performed by the ADC. The ADC may derive a first code that approximates a combination of an analog input value of the ADC and a dither value for the ADC sampled on a capacitor array. The ADC may further derive a second code to represent a residue of the combination with respect to the first code applied to the capacitor array. The ADC may combine the numerical value of the first code and the numerical value of the second code to produce a combined code applied to the capacitor array for deriving a digital output code. Combining the numerical value of the first code and the numerical value of the second code in the digital domain can provide for greater analog-to-digital (A/D) conversion linearity.

公开(公告)号：US11626885B1

公开(公告)日：2023-04-11

申请号：US17538187

申请日：2021-11-30

申请人： Analog Devices, Inc.

发明人： Shaolong Liu ,  Daniel Peter Canniff ,  Abhishek Bandyopadhyay ,  Akira Shikata

IPC分类号： H03M3/00 ,  H03M1/00 ,  H03M1/06 ,  H03M1/12

摘要： An excess loop delay compensation (ELDC) technique for use with a successive approximation register (SAR) based quantizer in a continuous time delta-sigma ADC is described. The techniques can efficiently program and calibrate the ELD gain in ELD compensation SAR quantizers. An ELDC circuit can include a charge pump having a digitally programmable capacitance to adjust a gain, such as the gain of the ELDC digital-to-analog converter (DAC) or the gain of the SAR DAC.

公开(公告)号：US11621722B2

公开(公告)日：2023-04-04

申请号：US17459020

申请日：2021-08-27

申请人： Analog Devices, Inc.

发明人： Abhishek Bandyopadhyay ,  Akira Shikata

IPC分类号： H03M3/00

摘要： The number of bits in the quantizer can be decoupled from the number of bits in the feedback digital-to-analog converter (DAC) A delta-sigma analog-to-digital converter circuit can include a first quantizer to generate an output having a first number of bits and a second quantizer coupled to an output of the first quantizer, where the second quantizer can receive the output of the first quantizer and generate an output having a second number of bits. The feedback DAC can be coupled to the second quantizer to receive a representation of the output of the second quantizer, where the output of the feedback digital-to-analog converter circuit has the second number of bits. These techniques can reduce the area of the feedback DAC, e.g., 4 or 5 bits, and the techniques can achieve a higher maximum stable amplitude (MSA) because it is effectively a second order loop.