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1.发明申请公开(公告)号：US20130127536A1
公开(公告)日：2013-05-23
申请号：US13677496
申请日：2012-11-15
Inventor： Marco Orazio Cavallaro , Serge Ramet , Tiziano Chiarillo
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F3/45183 , H03F3/45659
Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
Abstract translation: 全差分运算放大器包括差分输入级，至少一个输出级和与输入级相连的共模反馈电路。 差分输入级包括差分对晶体管和用于差分对晶体管的偏置电路。 启动电路用于检测输入级的差分对的晶体管的工作状态，并响应于此来启动偏置电路。
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2.发明申请CONTROL CIRCUIT FOR LOW NOISE AMPLIFIER AND RELATED DIFFERENTIAL AND SINGLE-ENDED AMPLIFICATION DEVICES 有权低噪声放大器和相关差分放大器和单端放大器件的控制电路公开(公告)号：US20150333713A1
公开(公告)日：2015-11-19
申请号：US14707232
申请日：2015-05-08
Applicant: STMicroelectronics S.r.l.
Inventor： Marco Orazio Cavallaro
CPC classification number: H03F3/45071 , H03F1/0205 , H03F1/301 , H03F3/193 , H03F3/45179 , H03F2200/18 , H03F2200/294 , H03F2200/72 , H03F2203/45112 , H03F2203/45244 , H03F2203/45306 , H03G1/0029 , H03G3/3052
Abstract: A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.
Abstract translation: 电路包括并联连接在第一节点和第二节点之间的第二对晶体管，二极管连接晶体管耦合到第二节点。 第二对晶体管具有连接在第三节点处的电流端子。 第一和第二电流宿晶体管以电流镜配置连接到二极管连接的晶体管，并进一步耦合到第三节点。 第一差分放大器具有耦合到第一和第三晶体管的控制端的输出和耦合到第三晶体管的另一个电流节点的输入。 第二差分放大器具有耦合到第二和第四晶体管的控制端子的输出端和耦合到第四晶体管的另一个电流节点的输入端。
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Patent Agency Ranking
公开(公告)号：US09813044B2
公开(公告)日：2017-11-07
申请号：US15014260
申请日：2016-02-03
Applicant: STMicroelectronics S.r.l.
Inventor： Marco Orazio Cavallaro
CPC classification number: H03H11/0427 , H03H11/0422
Abstract: An active high gain filter includes high value resistances in feedback implemented using a negative resistance circuit configuration. The high value resistance is implemented using two or smaller resistances connected in the negative resistance circuit configuration. This implementation permits integration of the filter circuit using less occupied area while still providing an accurate transfer function response.
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4.发明授权Control circuit for low noise amplifier and related differential and single-ended amplification devices 有权用于低噪声放大器及相关差分和单端放大器件的控制电路公开(公告)号：US09385671B2
公开(公告)日：2016-07-05
申请号：US14707232
申请日：2015-05-08
Applicant: STMicroelectronics S.r.l.
Inventor： Marco Orazio Cavallaro
CPC classification number: H03F3/45071 , H03F1/0205 , H03F1/301 , H03F3/193 , H03F3/45179 , H03F2200/18 , H03F2200/294 , H03F2200/72 , H03F2203/45112 , H03F2203/45244 , H03F2203/45306 , H03G1/0029 , H03G3/3052
Abstract: A circuit includes a first pair of transistors connected in parallel between a first node and a second node with a diode-connected transistor coupled to the second node. A second pair of transistors has current terminals connected at a third node. A first and second current sink transistors are connected in a current mirror configuration with the diode-connected transistor and further coupled to the third node. A first differential amplifier has an output coupled to control terminals of the first and third transistors and an input coupled to a further current node of the third transistor. A second differential amplifier has an output coupled to control terminals of the second and fourth transistors and an input coupled to a further current node of the fourth transistor.
Abstract translation: 电路包括并联连接在第一节点和第二节点之间的第二对晶体管，二极管连接晶体管耦合到第二节点。 第二对晶体管具有连接在第三节点处的电流端子。 第一和第二电流宿晶体管以电流镜配置连接到二极管连接的晶体管，并进一步耦合到第三节点。 第一差分放大器具有耦合到第一和第三晶体管的控制端的输出和耦合到第三晶体管的另一个电流节点的输入。 第二差分放大器具有耦合到第二和第四晶体管的控制端子的输出端和耦合到第四晶体管的另一个电流节点的输入端。
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5.发明授权公开(公告)号：US08854136B2
公开(公告)日：2014-10-07
申请号：US13677496
申请日：2012-11-15
Inventor： Marco Orazio Cavallaro , Serge Ramet , Tiziano Chiarillo
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F3/45183 , H03F3/45659
Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
Abstract translation: 全差分运算放大器包括差分输入级，至少一个输出级和与输入级相连的共模反馈电路。 差分输入级包括差分对晶体管和用于差分对晶体管的偏置电路。 启动电路用于检测输入级的差分对的晶体管的工作状态，并响应于此来启动偏置电路。
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公开(公告)号：US11537153B2
公开(公告)日：2022-12-27
申请号：US16459169
申请日：2019-07-01
Applicant: STMicroelectronics S.r.l.
Inventor： Marco Orazio Cavallaro , Germano Nicollini , Giuseppe Palmisano
Abstract: A voltage reference circuit includes a first circuit block configured to generate a proportional to absolute temperature current, the first circuit block comprising a current mirror amplifier, a second circuit block coupled to the first circuit block and configured to generated a complimentary to absolute temperature current, and a third circuit block coupled to both the first circuit block and the second circuit block. The second circuit block includes a multi-stage common-source amplifier. The third circuit block is configured to combine the proportional to absolute temperature current and the complimentary to absolute temperature current to generate a reference voltage at an output of the voltage reference circuit.
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公开(公告)号：US20170222626A1
公开(公告)日：2017-08-03
申请号：US15014260
申请日：2016-02-03
Applicant: STMicroelectronics S.r.l.
Inventor： Marco Orazio Cavallaro
IPC: H03H11/04
CPC classification number: H03H11/0427 , H03H11/0422
Abstract: An active high gain filter includes high value resistances in feedback implemented using a negative resistance circuit configuration. The high value resistance is implemented using two or smaller resistances connected in the negative resistance circuit configuration. This implementation permits integration of the filter circuit using less occupied area while still providing an accurate transfer function response.
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