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1. 发明申请

WO2009023372A1 LOW NOISE, LOW POWER, HIGH LINEARITY DIFFERENTIAL AMPLIFIER WITH A CAPACITIVE INPUT IMPEDANCE 审中-公开
标题翻译：低噪声，低功耗，具有电容输入阻抗的高线性差分放大器
公开(公告)号：WO2009023372A1
公开(公告)日：2009-02-19
申请号：PCT/US2008/067285
申请日：2008-06-18
申请人： NEWPORT MEDIA, INC.
发明人： WANG, Dejun , ELWAN, Hassan
IPC分类号： H03F3/45 , H03F3/191 , H03F1/32 , H01S3/06
CPC分类号： H03F1/3211 , H03F1/26 , H03F3/45 , H03F3/45183 , H03F3/45475 , H03F3/45659 , H03F2200/261 , H03F2203/45082 , H03F2203/45091 , H03F2203/45138 , H03F2203/45366 , H03F2203/45526
摘要： A low noise, low power differential two-stage amplifier includes a first stage comprising a pair of electrical devices that sense an input signal difference across the pair of electrical devices; and a control feedback loop operatively connected to the first stage, wherein the first stage in combination with the control loop feedback is adapted to place an exact copy of the signal across a first pair of resistive components, wherein the first pair of resistive components are adapted to generate a differential signal current, wherein the control feedback loop is adapted to ensure that the differential signal current goes a second pair of resistive components to generate a voltage output. Preferably, the first and second pair of resistive components are in ratio to produce the exact copy of the signal with some gain at an output of the first stage.
摘要翻译：低噪声，低功率差分两级放大器包括：第一级，包括一对感测一对电气装置上的输入信号差的电气装置; 以及可操作地连接到第一级的控制反馈回路，其中结合控制回路反馈的第一级适合于将信号的精确副本放置在第一对电阻部件上，其中第一对电阻部件被适配以产生差分信号电流，其中所述控制反馈环路适于确保所述差分信号电流进入第二对电阻分量以产生电压输出。优选地，第一和第二对电阻分量的比率以在第一级的输出处产生具有一些增益的信号的精确副本。

2. 发明申请

WO2008097820A1 DUAL TRANSCONDUCTANCE AMPLIFIERS AND DIFFERENTIAL AMPLIFIERS IMPLEMENTED USING SUCH DUAL TRANSCONDUCTANCE AMPLIFIERS 审中-公开
标题翻译：使用这种双通道放大器实现的双通道放大器和差分放大器
公开(公告)号：WO2008097820A1
公开(公告)日：2008-08-14
申请号：PCT/US2008/052739
申请日：2008-02-01
申请人： TEXAS INSTRUMENTS INCORPORATED , CORSI, Marco
发明人： CORSI, Marco
IPC分类号： H03F3/45
CPC分类号： H03F3/45094 , H03F3/45475 , H03F3/45968 , H03F2203/45082 , H03F2203/45138 , H03F2203/45212 , H03F2203/45288 , H03F2203/45418 , H03F2203/45722
摘要： Various systems and methods for signal amplification are disclosed. For example, some embodiments of the invention provide differential amplifiers (600) that include dual transconductance characteristics. Such amplifiers include two dual input operational amplifiers (697a) that each includes two input sets (610a, 620a). A first of the input sets exhibits a first transconductance (GmI) and a second of the input sets exhibits a second transconductance (Gm2). The two dual input operational amplifiers are configured such that to a common mode signal, the amplifier exhibits an overall transconductance that is the difference between the first transconductance (GmI) and the second transconductance (Gm2). In contrast, to a differential signal, the overall transconductance is the sum of the first transconductance (GmI) and the second transconductance (Gm2).
摘要翻译：公开了用于信号放大的各种系统和方法。例如，本发明的一些实施例提供了包括双跨导特性的差分放大器（600）。这种放大器包括两个双输入运算放大器（697a），每个包括两个输入组（610a，620a）。输入组中的第一个显示出第一跨导（GmI），第二个输入组显示第二跨导（Gm2）。两个双输入运算放大器被配置为使得对于共模信号，放大器表现出作为第一跨导（Gm1）和第二跨导（Gm2）之间的差的总跨导。相比之下，对于差分信号，总跨导是第一跨导（GmI）和第二跨导（Gm2）之和。

3. 发明申请

WO2017140087A1 一种放大电路审中-公开
公开(公告)号：WO2017140087A1
公开(公告)日：2017-08-24
申请号：PCT/CN2016/090469
申请日：2016-07-19
申请人：深圳市汇顶科技股份有限公司
发明人：张孟文
IPC分类号： H03F3/45
CPC分类号： H03F1/0205 , H03F1/301 , H03F1/32 , H03F3/005 , H03F3/187 , H03F3/45183 , H03F3/45188 , H03F3/45192 , H03F3/45475 , H03F3/45659 , H03F3/45699 , H03F3/45762 , H03F2200/129 , H03F2200/156 , H03F2200/159 , H03F2200/18 , H03F2200/222 , H03F2200/252 , H03F2200/264 , H03F2200/471 , H03F2200/555 , H03F2203/45008 , H03F2203/45012 , H03F2203/45024 , H03F2203/45028 , H03F2203/45054 , H03F2203/45068 , H03F2203/45082 , H03F2203/45112 , H03F2203/45134 , H03F2203/45136 , H03F2203/45171 , H03F2203/45174 , H03F2203/45182 , H03F2203/45188 , H03F2203/45192 , H03F2203/45208 , H03F2203/45244 , H03F2203/45332 , H03F2203/45421 , H03F2203/45434 , H03F2203/45444 , H03F2203/45512 , H03F2203/45514 , H03F2203/45534 , H03F2203/45544 , H03F2203/45546 , H03F2203/45551 , H03F2203/45586 , H03F2203/45588 , H03F2203/45616 , H03F2203/45632 , H03F2203/45642 , H03F2203/45656 , H03F2203/45674 , H03F2203/45676
摘要：本申请提供了一种放大电路，其包含有一参考电压产生电路、一共模电压转换电路、一共模负反馈电路以及一放大子电路，该参考电压产生电路根据一后级共模电压产生一第一参考电压、一第二参考电压及一参考共模电压，该共模电压转换电路根据该参考共模电压将一前级输出差分信号转换成一差分输入信号，该共模负反馈电路产生一控制电压以快速地建立该放大子电路之一共模负反馈，其中该第一参考电压及该第二参考电压用来消除该前级输出差分信号之一基底信号。本申请提供的放大电路可消除基底信号、转换共模电压及快速建立共模负反馈。

4. 发明申请

WO2014074238A1 INSTRUMENTATION AMPLIFIER WITH RAIL-TO-RAIL INPUT RANGE 审中-公开
标题翻译：带轨至轨输入范围的仪表放大器
公开(公告)号：WO2014074238A1
公开(公告)日：2014-05-15
申请号：PCT/US2013/061554
申请日：2013-09-25
申请人： SEMTECH CORPORATION
发明人： NYS, Olivier , KRUMMENACHER, Francois
IPC分类号： G01R17/00 , G01R1/30
CPC分类号： H03F1/52 , H03F1/3211 , H03F3/3022 , H03F3/45183 , H03F3/45475 , H03F3/45645 , H03F3/45941 , H03F3/45973 , H03F2200/261 , H03F2203/45082 , H03F2203/45138 , H03F2203/45431 , H03F2203/45434 , H03F2203/45441 , H03F2203/45528
摘要： A system and method for adjusting a common mode output voltage in an instrumentation amplifier is provided. In one aspect, the common mode output voltage is increased or decreased with respect to the common mode input voltage to enable high amplification of the signal input to the instrumentation amplifier. Moreover, the common mode output voltage can be driven to (or approximately to) a target voltage value such as, but not limited to, half the supply, even if the common mode input voltage is close to supply or ground rail voltage. Thus, a high amplification of the differential input voltage can be obtained and utilized for various applications requiring rail to rail input.
摘要翻译：提供了一种用于调整仪表放大器中的共模输出电压的系统和方法。在一个方面，共模输出电压相对于共模输入电压增加或减小，以便能够对输入到仪表放大器的信号进行高放大。此外，即使共模输入电压接近电源或接地电压，共模输出电压也可被驱动到（或近似）目标电压值，例如但不限于电源的一半。因此，可以获得差分输入电压的高放大率并且用于需要轨对轨输入的各种应用。

5. 发明申请

WO2008042188A2 SIGNAL CONDITIONING CIRCUIT, A COMPARATOR INCLUDING SUCH A CONDITIONING CIRCUIT AND A SUCCESSIVE APPROXIMATION CONVERTER INCLUDING SUCH A CIRCUIT 审中-公开
标题翻译：信号调理电路，包括这种调节电路的比较器和包括这种电路的连续近似转换器
公开(公告)号：WO2008042188A2
公开(公告)日：2008-04-10
申请号：PCT/US2007/020780
申请日：2007-09-26
申请人： ANALOG DEVICES, INC. , HURRELL, Christopher, Peter , LYDEN, Colin, Gerard
发明人： HURRELL, Christopher, Peter , LYDEN, Colin, Gerard
IPC分类号： H03M1/12 , H03F3/45 , H03M1/46
CPC分类号： H03M1/124 , H03F3/45188 , H03F3/45659 , H03F2200/264 , H03F2200/78 , H03F2203/45082 , H03F2203/45396 , H03F2203/45424 , H03F2203/45642 , H03M1/46
摘要： A signal conditioning circuit for a latching comparator comprising first and second transistors arranged in a long tail pair, the long tail pair having an active load and configured to act as an integrator.
摘要翻译：用于锁存比较器的信号调节电路包括布置在长尾对中的第一和第二晶体管，长尾对具有有源负载并且被配置为充当积分器。

6. 发明申请

WO2016130295A1 AMPLIFIER WITH COMMON-MODE FILTER 审中-公开
标题翻译：具有通用滤波器的放大器
公开(公告)号：WO2016130295A1
公开(公告)日：2016-08-18
申请号：PCT/US2016/014186
申请日：2016-01-20
申请人： QUALCOMM INCORPORATED
发明人： HASSAN, Muhammad , ASURI, Bhushan Shanti , RAVISH SUVARNA, Apsara , YOON, Youngchang
IPC分类号： H03F3/45 , H03F3/24 , H04B1/04
CPC分类号： H03F3/45632 , H03F1/223 , H03F3/245 , H03F3/45188 , H03F2200/09 , H03F2200/378 , H03F2203/45024 , H03F2203/45082 , H03F2203/45084 , H03F2203/45204 , H03F2203/45481 , H03F2203/45631 , H03F2203/45638 , H03F2203/45706 , H03F2203/45731
摘要： A differential amplifier having a tunable filter is disclosed. The tunable filter may attenuate some common-mode signals while not affecting amplification of differential signals. The tunable filter may include a resonant circuit to select frequencies of common-mode signals to attenuate. The resonant circuit may include a variable capacitor series-coupled to an inductor. A resonant frequency of the resonant circuit may be determined, in part, by a capacitance value of the variable capacitor.
摘要翻译：公开了一种具有可调谐滤波器的差分放大器。可调谐滤波器可以衰减一些共模信号，而不影响差分信号的放大。可调滤波器可以包括谐振电路，以选择共模信号的频率来衰减。谐振电路可以包括串联耦合到电感器的可变电容器。谐振电路的谐振频率可以部分地由可变电容器的电容值确定。

7. 发明申请

WO2014184262A1 VORRICHTUNG MIT EINER DIFFERENZVERSTÄRKERSCHALTUNG UND EINER EXTRAKTIONSSCHALTUNG 审中-公开
标题翻译：采用差分放大器电路和提取电路装置
公开(公告)号：WO2014184262A1
公开(公告)日：2014-11-20
申请号：PCT/EP2014/059883
申请日：2014-05-14
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： SUNDERMEYER, Jan , WEBER, Norbert
IPC分类号： H04L25/02
CPC分类号： H04L25/0276 , H03F3/45479 , H03F2203/45082
摘要： Eine Vorrichtung mit zwei Leitungspaaren (16a; 16b), die einen ersten und einen zweiten Kanal umfassen, umfasst ferner einen Phantomkanal, der ausgebildet ist, einen dritten Kanal bereitzustellen, ohne dass Leitungen physikalisch installiert werden. Basierend auf einem differentiellen Signal werden an einem ersten Ausgang einer Differenzverstärkerschaltung ein erster Gleichtaktsignalpegel (33 a) und an einem zweiten Ausgang ein zweiter Gleichtaktsignalpegel (33 b) erzeugt und der erste Gleichtaktsignalpegel (33 a) an die Leitungen des ersten Leitungspaares (16a) angelegt und der zweite Gleichtaktsignalpegel an die Leitungen des zweiten Leitungspaares (16b) angelegt. Eine Extraktionsschaltung (39) ist ausgebildet, Gleichtaktanteile auf den Leitungen des ersten Leitungspaares (16a) und den Leitungen des zweiten Leitungspaares (16b) zu extrahieren.
摘要翻译：用两对线的装置（16A; 16B）包括第一和第二信道，还包括一幻象信道，其被配置以提供第三信道而不线被物理安装。基于差分信号，第一共模信号电平（33），并在第二输出的第二共模信号电平（33 b）在差分放大器电路的第一输出端产生和（33）在所述第一线对（16A）的线的第一共模信号电平的被施加应用和在第二行对行的第二共模信号电平（16b）的。一个提取电路（39）被设计，在所述第一线对（16A）和第二线对的线的线的共模分量（16B）来提取。

8. 发明申请

WO2009092475A2 METHOD AND APPARATUS FOR IMPROVEMENT OF MATCHING FET CURRENTS USING A DIGITAL TO ANALOG CONVERTER 审中-公开
标题翻译：使用数字到模拟转换器来改善匹配FET电流的方法和装置
公开(公告)号：WO2009092475A2
公开(公告)日：2009-07-30
申请号：PCT/EP2008/065828
申请日：2008-11-19
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , BAUMGARTNER, Steven, John , SILJENBERG, David , WOESTE, Dana, Marie
发明人： BAUMGARTNER, Steven, John , SILJENBERG, David , WOESTE, Dana, Marie
CPC分类号： H03F3/45183 , H03F3/45654 , H03F3/45659 , H03F2203/45008 , H03F2203/45082 , H03F2203/45342 , H03F2203/45354 , H03F2203/45418 , H03F2203/45438 , H03F2203/45588 , H03F2203/45616 , H03F2203/45681
摘要： A method, apparatus and design structure to equalize currents on a matching pair of FETs having sources connected together on a silicon on insulator semiconductor chip, or other chip wherein FET bodies can be individually biased. During a determination period, functional inputs coupled to the gates of the matching pair of FETs are short circuited, and a DAC adjusts a first body voltage of a first FET in the matching pair of FETs relative to a second body voltage of a second FET in the matching pair of FETs until a currents in the first FET and the second FET are equal, within resolution of the DACs voltage granularity. A proper DAC control value is stored and applied to the DAC following the determination period when the short circuit is removed from the functional inputs.
摘要翻译：一种在绝缘体上半导体芯片上连接在一起的源的匹配对的一对FET或其它FET体可被单独偏置的其它芯片的电流均衡的方法，装置和设计结构。在确定期间，耦合到匹配的一对FET的栅极的功能输入短路，并且DAC相对于第二FET的第二体电压调整匹配的一对FET中的第一FET的第一体电压在DAC电压粒度的分辨率内，直到第一FET和第二FET中的电流相等的匹配的一对FET。在从功能输入断开短路的确定周期之后，将适当的DAC控制值存储并应用于DAC。

9. 发明申请

WO2008103165A3 FULLY DIFFERENTIAL AMPLIFIER WITH CONTINUOUS-TIME OFFSET REDUCTION 审中-公开
标题翻译：具有连续时间偏移减小功能的全差动放大器
公开(公告)号：WO2008103165A3
公开(公告)日：2008-11-20
申请号：PCT/US2007026204
申请日：2007-12-19
申请人： INTELLEFLEX CORP , YANG TAWEI , FARNSLEY LARRY
发明人： YANG TAWEI , FARNSLEY LARRY
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F3/45748 , H03F2203/45082 , H03F2203/45134 , H03F2203/45212
摘要： A fully differential amplifier circuit according to one embodiment includes a first section for generating first and second output signals on first and second outputs from first and second input signals; a first feedback loop coupled to the first section, the first feedback loop including a second section for adjusting the first output signal towards a common mode voltage level, and for reducing an offset voltage of the first output signal; a second feedback loop coupled to the first section, the second feedback loop including a third section for adjusting the second output signal towards the common mode voltage level, and for reducing an offset voltage of the second output signal; and a filter section positioned on the first and second feedback loops between outputs of the second and third sections and the first section.
摘要翻译：根据一个实施例的全差分放大器电路包括：第一部分，用于在来自第一和第二输入信号的第一和第二输出上产生第一和第二输出信号; 耦合到所述第一部分的第一反馈回路，所述第一反馈回路包括用于将所述第一输出信号调整为共模电压电平并且用于减小所述第一输出信号的偏移电压的第二部分; 耦合到所述第一部分的第二反馈回路，所述第二反馈回路包括用于将所述第二输出信号调节到所述共模电压电平并且用于减小所述第二输出信号的偏移电压的第三部分; 以及位于第二和第三部分的输出端与第一部分之间的第一和第二反馈回路上的滤波器部分。

10. 发明申请

WO2019133474A1 DIFFERENTIAL AMPLIFIER WITH COMPLEMENTARY UNIT STRUCTURE 审中-公开
公开(公告)号：WO2019133474A1
公开(公告)日：2019-07-04
申请号：PCT/US2018/067063
申请日：2018-12-21
申请人： QUALCOMM INCORPORATED
发明人： KARMAKER, Rahul , FAN, Bin
IPC分类号： H03F3/45
CPC分类号： H03F1/0205 , H03F3/193 , H03F3/4521 , H03F3/45237 , H03F3/4565 , H03F2200/36 , H03F2200/411 , H03F2200/451 , H03F2200/453 , H03F2200/456 , H03F2200/555 , H03F2203/45022 , H03F2203/45026 , H03F2203/45082 , H03F2203/45172 , H03F2203/45188 , H03F2203/45288 , H03F2203/45418 , H03F2203/45424 , H03F2203/45494 , H03F2203/45508
摘要： Certain aspects of the present disclosure generally relate to a differential amplifier implemented using a complementary metal-oxide-semiconductor (CMOS) structure. The differential amplifier generally includes a first pair of transistors and a second pair of transistors coupled to the first pair of transistors. The gates of the first pair of transistors and gates of the second pair of transistors may be coupled to respective differential input nodes of the differential amplifier, and drains of the first pair of transistors and drains of the second pair of transistors may be coupled to respective differential output nodes of the differential amplifier. In certain aspects, the differential amplifier may include a biasing transistor having a drain coupled to a source of a transistor of the first pair of transistors and having a gate coupled to a common-mode feedback (CMFB) path of the differential amplifier.

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