公开(公告)号：US09299692B2

公开(公告)日：2016-03-29

申请号：US14271044

申请日：2014-05-06

Applicant: ANALOG DEVICES GLOBAL

Inventor： Frank Poucher ,  Colin G. Lyden

IPC: H01L25/00 ,  H01L27/02 ,  H01L23/29

CPC classification number: H01L27/0207 ,  H01L23/293 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Physical layouts of ratioed circuit elements, such as transistors, are disclosed. Such layouts can maintain electrical characteristics of the ratioed circuit elements relative to one another in the presence of mechanical stresses applied to an integrated circuit, such as an integrated circuit encapsulated in plastic. The ratioed circuit elements can include first and second composite circuit elements formed of first and second groups of circuit elements, respectively, arranged around a center point. The first group of circuit elements can be arranged on a grid and the second group of circuit elements can include four circuit elements spaced approximately the same distance from the center point. Each of the circuit elements in the second group can be off the grid in at least one dimension. The first and second groups of circuit elements can be arranged around a perimeter of dummy circuit elements in some embodiments.

Abstract translation: 公开了诸如晶体管的比例电路元件的物理布局。 这样的布局可以在施加到集成电路的机械应力（例如封装在塑料中的集成电路）的存在下，保持比例的电路元件相对于彼此的电特性。 比例的电路元件可以包括分别围绕中心点布置的由第一组和第二组电路元件形成的第一和第二复合电路元件。 第一组电路元件可以布置在栅格上，第二组电路元件可以包括与中心点大致相同的距离的四个电路元件。 第二组中的每个电路元件可以在至少一个维度上离开网格。 在一些实施例中，第一和第二组电路元件可布置在虚拟电路元件的周边周围。

公开(公告)号：US20150228636A1

公开(公告)日：2015-08-13

申请号：US14271044

申请日：2014-05-06

Applicant: ANALOG DEVICES GLOBAL

Inventor： Frank Poucher ,  Colin G. Lyden

IPC: H01L27/02 ,  H01L23/29 ,  H01L21/8222 ,  H01L27/082

CPC classification number: H01L27/0207 ,  H01L23/293 ,  H01L2224/32245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/00

Abstract: Physical layouts of ratioed circuit elements, such as transistors, are disclosed. Such layouts can maintain electrical characteristics of the ratioed circuit elements relative to one another in the presence of mechanical stresses applied to an integrated circuit, such as an integrated circuit encapsulated in plastic. The ratioed circuit elements can include first and second composite circuit elements formed of first and second groups of circuit elements, respectively, arranged around a center point. The first group of circuit elements can be arranged on a grid and the second group of circuit elements can include four circuit elements spaced approximately the same distance from the center point. Each of the circuit elements in the second group can be off the grid in at least one dimension. The first and second groups of circuit elements can be arranged around a perimeter of dummy circuit elements in some embodiments.

Abstract translation: 公开了诸如晶体管的比例电路元件的物理布局。 这样的布局可以在施加到集成电路的机械应力（诸如封装在塑料中的集成电路）的存在下，保持比例的电路元件的电特性。 比例的电路元件可以包括分别围绕中心点布置的由第一组和第二组电路元件形成的第一和第二复合电路元件。 第一组电路元件可以布置在栅格上，第二组电路元件可以包括与中心点大致相同的距离的四个电路元件。 第二组中的每个电路元件可以在至少一个维度上离开网格。 在一些实施例中，第一和第二组电路元件可布置在虚拟电路元件的周边周围。

公开(公告)号：US20170265794A1

公开(公告)日：2017-09-21

申请号：US15072961

申请日：2016-03-17

Applicant: Analog Devices Global

Inventor： John Jude O'Donnell ,  Javier Calpe Maravilla ,  Colin G. Lyden ,  Thomas G. O'Dwyer

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/0402

CPC classification number: A61B5/14552 ,  A61B5/0402 ,  A61B5/7292 ,  A61B2562/0238

Abstract: 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 upon it; a current level driver circuit that includes a current source configured to couple the current source to alternatively provide current to one of the first current-powered light source and the second light current-powered light source; a processor configured to predict times of occurrence of one or more first time intervals in which arterial volume at a tissue site is at one of a maximum and a minimum; wherein the processor is configured to control the current source, to provide a first pattern of higher power-dissipation current pulses to the first and second current-powered light sources during the first time intervals, and to provide a second pattern of lower power-dissipation current pulses to at least one of the first and second current-powered light sources during second time intervals.

公开(公告)号：US10582887B2

公开(公告)日：2020-03-10

申请号：US15072961

申请日：2016-03-17

Applicant: Analog Devices Global

Inventor： John Jude O'Donnell ,  Javier Calpe Maravilla ,  Colin G. Lyden ,  Thomas G. O'Dwyer

IPC: A61B5/1455 ,  A61B5/0402 ,  A61B5/00

Abstract: 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 upon it; a current level driver circuit that includes a current source configured to couple the current source to alternatively provide current to one of the first current-powered light source and the second light current-powered light source; a processor configured to predict times of occurrence of one or more first time intervals in which arterial volume at a tissue site is at one of a maximum and a minimum; wherein the processor is configured to control the current source, to provide a first pattern of higher power-dissipation current pulses to the first and second current-powered light sources during the first time intervals, and to provide a second pattern of lower power-dissipation current pulses to at least one of the first and second current-powered light sources during second time intervals.

公开(公告)号：US09806552B2

公开(公告)日：2017-10-31

申请号：US15169981

申请日：2016-06-01

Applicant: Analog Devices Global

Inventor： Paraic Brannick ,  Colin G. Lyden ,  Damien J. McCartney ,  Gabriel Banarie

IPC: H03M1/60 ,  H02J7/00 ,  G04F10/00 ,  H03M1/20 ,  H03M1/50 ,  H02J7/34

CPC classification number: H02J7/007 ,  G04F10/005 ,  H02J7/345 ,  H03M1/201 ,  H03M1/50 ,  H03M1/52 ,  H03M1/60

Abstract: 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, which can allow for multiple charge balancing charge transfer events during the integration time period, and sampling of the integration capacitor once per integration time period, such as at the end of that integration time period. Information about the charge rebalancing can be used to adjust subsequent discrete-time signal processing, such as digitized values of the samples. Improved dynamic range and noise performance is possible. Computed tomography (CT) imaging and other use cases are described, including those with variable integration periods.

公开(公告)号：US11193803B2

公开(公告)日：2021-12-07

申请号：US16262579

申请日：2019-01-30

Applicant: Analog Devices Global Unlimited Company

Inventor： Claire Croke ,  Aine McCarthy ,  Adrian Sherry ,  Giovanni C. Dotta ,  Dan O'Donovan ,  Sean Wilson ,  Mary McCarthy ,  Colin G. Lyden ,  Fiona Mary Treacy ,  Michael Byrne

IPC: G01D18/00 ,  G01D21/00 ,  H03M1/00

Abstract: Various examples are directed to systems and methods for managing a sensor. A measurement system may receive, from a host device, a first register map describing a first configuration of a measurement system. The first configuration may be associated with a first sensor. The measurement system may compare the first register map to an error rule set indicating inconsistent register map arrangements. After comparing the first register map to the error rule set, the measurement system may configure a switch matrix of the measurement system to sample the first sensor according to the first configuration of the measurement system. The measurement system may receive a plurality of samples from a first sensor and generate first digital measurement data based at least in part on the plurality of samples.

公开(公告)号：US09859878B2

公开(公告)日：2018-01-02

申请号：US14517639

申请日：2014-10-17

Applicant: Analog Devices Global

Inventor： Colin G. Lyden ,  Donal Bourke

IPC: H03K5/003 ,  G01N27/02 ,  G01N27/327 ,  H03H11/24

CPC classification number: H03K5/003 ,  G01N27/028 ,  G01N27/3273 ,  H03H11/24

Abstract: A control circuit for use with a four terminal sensor, such as a glucose sensor. The Glucose sensor is a volume product and typically its manufacture will want to make it as inexpensively as possible. This may give rise to variable impedances surrounding the active cell of the sensor. Typically the sensor has first and second drive terminals and first and second measurement terminals, so as to help overcome the impedance problem. The control circuit is arranged to drive at least one of the first and second drive terminals with an excitation signal, and control the excitation signal such that a voltage difference between the first and second measurement terminals is within a target range of voltages. To allow the control circuit to work with a variety of measurement cell types the control circuit further comprises voltage level shifters for adjusting a voltage at one or both of the drive terminals, or for adjusting a voltage received from one or both of the measurement terminals.

公开(公告)号：US09800262B1

公开(公告)日：2017-10-24

申请号：US15258910

申请日：2016-09-07

Applicant: Analog Devices Global

Inventor： Roberto Sergio Matteo Maurino ,  Sanjay Rajasekhar ,  Pasquale Delizia ,  Colin G. Lyden ,  Gabriel Banarie

IPC: H03M3/00 ,  H03M1/08

CPC classification number: H03M3/464 ,  H03M1/08 ,  H03M3/34 ,  H03M3/452

Abstract: A sigma delta analog-to-digital converter (ADC) circuit comprises a capacitive gain amplifier circuit having a first input to receive an input voltage and a second input; a loop filter circuit connected to an output of the capacitive gain amplifier circuit; a sub-ADC circuit including an output and an input connected to an output of the loop filter circuit; and a digital-to-analog (DAC) circuit including a DAC input connected to the output of the sub-ADC circuit, and a DAC output connected to the second input of the capacitive gain amplifier.

公开(公告)号：US09391628B1

公开(公告)日：2016-07-12

申请号：US14967880

申请日：2015-12-14

Applicant: ANALOG DEVICES GLOBAL

Inventor： Colin G. Lyden ,  Pasquale Delizia ,  Sanjay Rajasekhar ,  Yogesh Jayarman Sharma ,  Arthur J. Kalb ,  Marvin L. Shu ,  Gerard Mora-Puchalt ,  Roberto S. Maurino

IPC: H03M1/38 ,  H03M1/00 ,  H03M1/06 ,  H03M1/12

CPC classification number: H03M1/1245 ,  G11C27/026

Abstract: An input stage to an analog to digital converter (ADC) includes at least one sampling capacitor (SC) for sampling an input signal in acquire phases, a capacitive gain amplifier (CGA) for providing the input signal to the SC, and bandwidth control means. The bandwidth control means is configured to ensure that the SC has a first bandwidth during a first part of an acquire phase and has a second bandwidth during a subsequent, second, part of said acquire phase, the second bandwidth being smaller than the first. In this manner, first, the input signal is sampled at a higher, first, bandwidth allowing to take advantage of using a high-bandwidth CGA to minimize settling error on the SC, and, next, during a second part of the same acquire phase, the input signal is sampled at a lower, second, bandwidth advantageously decreasing noise resulting from the use of a high-bandwidth CGA.

Abstract translation: 模数转换器（ADC）的输入级包括至少一个用于采集相位中的输入信号的采样电容器（SC），用于向SC提供输入信号的电容增益放大器（CGA）以及带宽控制装置 。 带宽控制装置被配置为确保SC在获取阶段的第一部分期间具有第一带宽，并且在所述获取阶段的后续，第二部分期间具有第二带宽，第二带宽小于第一带宽。 以这种方式，首先，以更高的第一带宽对输入信号进行采样，从而可利用使用高带宽CGA来最小化SC上的稳定误差，并且接下来在相同获取阶段的第二部分期间 ，输入信号以较低，第二带宽进行采样，有利于降低使用高带宽CGA导致的噪声。

公开(公告)号：US20190242730A1

公开(公告)日：2019-08-08

申请号：US16262676

申请日：2019-01-30

Applicant: Analog Devices Global Unlimited Company

Inventor： Claire Croke ,  Aine McCarthy ,  Adrian Sherry ,  Giovanni C. Dotta ,  Dan O'Donovan ,  Sean Wilson ,  Mary McCarthy ,  Colin G. Lyden ,  Fiona Treacy ,  Michael Byrne

IPC: G01D18/00

CPC classification number: G01D18/00

Abstract: Various examples are directed to methods and system of managing a sensor. A measurement system may receive from the host device, a first register map describing a first configuration of the measurement system for the first sensor. The first configuration may indicate a first measurement frequency for the first sensor. The measurement system may configure a switch matrix to provide a first excitation signal to the first sensor. The measurement system may configure the switch matrix to connect an analog-to-digital converter (ADC) of the measurement system to the first sensor. The measurement system may sample a first raw sensor signal from the first sensor with the ADC at a first measurement frequency described by the first configuration. The measurement system may generate first digital measurement data based at least in part on the first raw sensor signal and send the first digital measurement data to the host device.