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1. 发明授权

EP0486332B1 Operational amplifier 失效
标题翻译：运算放大器
公开(公告)号：EP0486332B1
公开(公告)日：1996-04-24
申请号：EP91402659.6
申请日：1991-10-04
申请人： TEXAS INSTRUMENTS FRANCE , TEXAS INSTRUMENTS INCORPORATED
发明人： Carbou,Pierre
IPC分类号： H03F3/30 , H03F3/45
CPC分类号： H03F3/3062 , H03F3/3023 , H03F3/45192 , H03F3/45475 , H03F3/45659 , H03F3/45946 , H03F2200/153 , H03F2203/45471

2. 发明授权

EP0836274B1 Common mode control circuit for a switchable fully differential OP-AMP 失效
标题翻译：用于切换全差动运算放大器的共模控制电路
公开(公告)号：EP0836274B1
公开(公告)日：2002-09-25
申请号：EP96830523.5
申请日：1996-10-11
申请人： STMicroelectronics S.r.l.
发明人： Baschirotto, Andrea , Nagari, Angelo , Castello, Rinaldo
IPC分类号： H03H1/00 , H03F3/00 , H03F3/45
CPC分类号： H03F3/005 , H03F3/45946 , H03F2203/45421

3. 发明授权

EP3096452B1 OPERATIONAL AMPLIFIER CIRCUIT WITH DC OFFSET SUPPRESSION 有权
公开(公告)号：EP3096452B1
公开(公告)日：2018-11-14
申请号：EP15168460.2
申请日：2015-05-20
申请人： ALi Corporation
发明人： Berner, Raphael
IPC分类号： H03F3/45 , H04B1/30
CPC分类号： H03F3/45475 , H03F3/45183 , H03F3/45659 , H03F3/45748 , H03F3/45946 , H03F3/45973 , H03F2203/45424 , H03F2203/45441 , H03F2203/45521 , H03F2203/45681 , H04B1/30
摘要： An Op-Amp circuit (100), a low pass filter and a RF receiver using the Op-Amp circuit are provided. The Op-Amp circuit includes a first operational amplifier (110) and a feedback circuit (120; 130). The feedback circuit is coupled to an output stage (113) of the first operational amplifier and generates a feedback signal (fb1; fb2) according to a reference voltage (ref) and one of a pair of differential output signals out_p; out_n). The feedback circuit outputs the feedback signal to the output stage (113) to adjust a bias current of the output stage corresponding to the one of the pair of differential output signals, so that a DC voltage level of the one of the pair of differential output signals is close to a voltage level of the reference voltage (ref) and a DC offset of the one of the pair of differential output signals is suppressed.

4. 发明公开

EP3096452A1 OPERATIONAL AMPLIFIER CIRCUIT WITH DC OFFSET SUPPRESSION 有权
标题翻译：操作流程麻省理工学院UNTERDRÜCKUNGDES DC-OFFSETS
公开(公告)号：EP3096452A1
公开(公告)日：2016-11-23
申请号：EP15168460.2
申请日：2015-05-20
申请人： ALi Corporation
发明人： Berner, Raphael
IPC分类号： H03F3/45
CPC分类号： H03F3/45475 , H03F3/45183 , H03F3/45659 , H03F3/45748 , H03F3/45946 , H03F3/45973 , H03F2203/45424 , H03F2203/45441 , H03F2203/45521 , H03F2203/45681 , H04B1/30
摘要： An Op-Amp circuit (100), a low pass filter and a RF receiver using the Op-Amp circuit are provided. The Op-Amp circuit includes a first operational amplifier (110) and a feedback circuit (120; 130). The feedback circuit is coupled to an output stage (113) of the first operational amplifier and generates a feedback signal (fb1; fb2) according to a reference voltage (ref) and one of a pair of differential output signals out_p; out_n). The feedback circuit outputs the feedback signal to the output stage (113) to adjust a bias current of the output stage corresponding to the one of the pair of differential output signals, so that a DC voltage level of the one of the pair of differential output signals is close to a voltage level of the reference voltage (ref) and a DC offset of the one of the pair of differential output signals is suppressed.
摘要翻译：提供了运算放大器电路（100），低通滤波器和使用运算放大器电路的RF接收器。运算放大器电路包括第一运算放大器（110）和反馈电路（120; 130）。所述反馈电路耦合到所述第一运算放大器的输出级（113），并且根据参考电压（ref）产生反馈信号（fb1; fb2），并且一对差分输出信号out_p中的一个; OUT_N）。反馈电路将反馈信号输出到输出级（113），以调整与一对差分输出信号中的一个对应的输出级的偏置电流，使得该对差分输出中的一个的直流电压电平信号接近参考电压（ref）的电压电平，并且抑制该对差分输出信号之一的DC偏移。

5. 发明公开

EP2804316A3 Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier 审中-公开
标题翻译：信号处理电路，用于溶解和交错式多路径反射镜放大器数字转换器
公开(公告)号：EP2804316A3
公开(公告)日：2015-09-16
申请号：EP14164157.1
申请日：2014-04-10
申请人： Renesas Electronics Corporation
发明人： FUNATO, Yoshihiro , KUMAMOTO, Toshio , YOSHIZAWA, Tomoaki , KUROOKA, Kazuaki
IPC分类号： H03F3/393 , H03F3/00 , H03F3/45
CPC分类号： H03F3/2171 , H03F3/005 , H03F3/393 , H03F3/45179 , H03F3/45192 , H03F3/45762 , H03F3/45946 , H03F2200/264 , H03F2200/271 , H03F2200/375 , H03F2200/408 , H03F2200/411 , H03F2200/81 , H03F2203/45012 , H03F2203/45028 , H03F2203/45116 , H03F2203/45136 , H03F2203/45138 , H03F2203/45174 , H03F2203/45212 , H03F2203/45512 , H03F2203/45528 , H03F2203/45558 , H03F2203/45594 , H03F2203/45601 , H03F2203/45604 , H03F2203/45631 , H03F2203/45632 , H03F2203/45634 , H03F2203/45641 , H03F2203/45681 , H03F2203/45698 , H03F2203/45726
摘要： A signal processing circuit includes a chopper amplifier (1) that has a differential amplifier circuit (AMP1) that amplifies differential input signals Vsp(t) and Vsm(t), and an adder circuit (1B) that generates an addition signal Vfil(t) by addition of the chopper output signal Vsub(t) that the chopper amplifier (1) generates. Differential signals inputted into the differential amplifier circuit (AMP1) are interchanged for every first phase period and second phase period, and the adder circuit (1B) generates the addition signal by addition of the chopper output signal in the first phase period and in the second phase period.
摘要翻译：一种信号处理电路，包括斩波器放大器（1）也有一个差分放大器电路（AMP1）做放大差分输入信号V SP（t）和VSM（t）和到加法器电路（1B）那样生成加法信号Vfil（吨）通过加入斩波输出信号V子（t）的所做的斩波放大器（1）基因率。输入到差分放大器电路（AMP 1）的差分信号被互换对于每一个第一相位周期和第二相位期间，和所述加法器电路（1B）基因速率通过加入在第一阶段期间的斩波器的输出信号的和在所述第二相加信号相期。

6. 发明公开

EP0836274A1 Common mode control circuit for a switchable fully differential OP-AMP 失效
标题翻译： Gleichtaktregelungsschaltungfüreinen geschalteten volldifferentiellenOperationverstärker
公开(公告)号：EP0836274A1
公开(公告)日：1998-04-15
申请号：EP96830523.5
申请日：1996-10-11
申请人： SGS-THOMSON MICROELECTRONICS s.r.l.
发明人： Baschirotto, Andrea , Nagari, Angelo , Castello, Rinaldo
IPC分类号： H03H1/00 , H03F3/00 , H03F3/45
CPC分类号： H03F3/005 , H03F3/45946 , H03F2203/45421
摘要： In switch-capacitor systems for extremely low supply voltage, employing fully differential switched op-amp, proper functioning of nMOS switches coupled to the inverting input node of an integrated stage capable of outputting a common mode control signal, is may possible by retaining the ground potential on the input node to prevent body effects on the threshold of nMOS switches by means of an auxiliary switched capacitor.
摘要翻译：在采用完全差分开关运算放大器的开关电容器系统中，使用全差分开关运算放大器，可以通过保持接地来耦合耦合到能够输出共模控制信号的集成级的反相输入节点的nMOS开关的正常工作输入节点上的电位，以通过辅助开关电容器来防止身体对nMOS开关阈值的影响。

7. 发明公开

EP0486332A1 Operational amplifier 失效
标题翻译： LeistungsoperationsverstärkerundVerstärkungsverfahren。
公开(公告)号：EP0486332A1
公开(公告)日：1992-05-20
申请号：EP91402659.6
申请日：1991-10-04
申请人： TEXAS INSTRUMENTS FRANCE , TEXAS INSTRUMENTS INCORPORATED
发明人： Carbou,Pierre
IPC分类号： H03F3/30 , H03F3/45
CPC分类号： H03F3/3062 , H03F3/3023 , H03F3/45192 , H03F3/45475 , H03F3/45659 , H03F3/45946 , H03F2200/153 , H03F2203/45471
摘要： An operational amplifier (10) is provided which includes a differential input stage (18) for receiving differential signals. A differential loop (30, 64), (86) amplifies said differential signals. The amplified differential signals are output on a pair differential output terminals (80, 84). A common mode loop (54), (30, 64) maintains the mean voltage of the amplified differential signals at a preselected value.
摘要翻译：提供了一种运算放大器（10），其包括用于接收差分信号的差分输入级（18）。差分回路（30,64）（86）放大所述差分信号。放大的差分信号在一对差分输出端子（80,84）上输出。共模回路（54）（30,64）将经放大的差分信号的平均电压维持在预选值。

8. 发明公开

EP0265044A1 Level shift circuit for differential signals 失效
标题翻译： PegelschiebeschaltungfürDifferenzsignale。
公开(公告)号：EP0265044A1
公开(公告)日：1988-04-27
申请号：EP87307134.4
申请日：1987-08-12
申请人： TEKTRONIX INC.
发明人： Diller, Calvin Dean , Gladden, Donald D.
IPC分类号： H03F3/45 , G01R13/22
CPC分类号： H03F3/26 , H03F3/45475 , H03F3/45946
摘要： A level shift circuit for shifting the common mode level of the output signal provided by a differential amplifier has first and second input terminals for receiving the output signal from the differential amplifier, which has a Thevenin source impedance R s , and also has first and second output terminals that are connected to a reference voltage level through a load impedance R o . The circuit comprises a differential transconductance amplifier having two output terminals that are connected respectively to the first and second output terminals of the circuit. The amplifier has the property that it responds to an input voltage E e between its input terminals by providing a current equal to E e g m1 /(1+τs) (where g m1 is the transconductance of the amplifier, τ is the response time constant of the amplifier and s is the Laplace transform operator) at its output terminals. Two equal-valued capacitors are connected respectively between the first input terminal of the circuit and the first output terminal of the circuit and between the second input terminal of the circuit and the second output terminal of the circuit, the capacitance C c of each capacitor being such that R s C c is much greater than τ. The circuit also comprises two equal-valued resistors connected in series between the first input terminal of the circuit and the second output terminal of the circuit and having their connection point connected to one of the input terminals of the amplifier, and two more equal-valued resistors connected in series between the first output terminal of the circuit and the second input terminal of the circuit and having their connection point connected to the other of the two input terminals of the amplifier. The value of g m1 is selected to be equal to (1/2R s + 1/R).
摘要翻译：用于移动由差分放大器提供的输出信号的共模电平的电平移位电路具有用于接收来自差分放大器的输出信号的第一和第二输入端，差分放大器具有戴维南源阻抗R s，并且还具有第一和第二输出端子，通过负载阻抗R o连接到参考电压电平。电路包括差分跨导放大器，其具有分别连接到电路的第一和第二输出端子的两个输出端子。放大器具有通过提供等于E的电流来响应输入端之间的输入电压E e的特性，例如m1 /（1+ tau s）（其中g m1是放大器的跨导，τ是响应时间放大器的常数和s是拉普拉斯变换算子）。电路的第一输入端子与电路的第一输出端子和电路的第二输入端子和电路的第二输出端子之间分别连接两个等价电容器，每个电容器的电容C c为使得R sC c比tau大得多。该电路还包括串联连接在电路的第一输入端和电路的第二输出端之间并具有连接点连接到放大器的一个输入端的两个等值电阻，以及两个等值的电路串联连接在电路的第一输出端和电路的第二输入端之间，并将它们的连接点连接到放大器的两个输入端中的另一个。选择g m1的值等于（1 / 2Rs + 1 / R）。

9. 发明公开

EP2804316A2 Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier 审中-公开
标题翻译：信号处理电路，用于溶解和交错式多路径反射镜放大器数字转换器
公开(公告)号：EP2804316A2
公开(公告)日：2014-11-19
申请号：EP14164157.1
申请日：2014-04-10
申请人： Renesas Electronics Corporation
发明人： FUNATO, Yoshihiro , KUMAMOTO, Toshio , YOSHIZAWA, Tomoaki , KUROOKA, Kazuaki
IPC分类号： H03F3/393
CPC分类号： H03F3/2171 , H03F3/005 , H03F3/393 , H03F3/45179 , H03F3/45192 , H03F3/45762 , H03F3/45946 , H03F2200/264 , H03F2200/271 , H03F2200/375 , H03F2200/408 , H03F2200/411 , H03F2200/81 , H03F2203/45012 , H03F2203/45028 , H03F2203/45116 , H03F2203/45136 , H03F2203/45138 , H03F2203/45174 , H03F2203/45212 , H03F2203/45512 , H03F2203/45528 , H03F2203/45558 , H03F2203/45594 , H03F2203/45601 , H03F2203/45604 , H03F2203/45631 , H03F2203/45632 , H03F2203/45634 , H03F2203/45641 , H03F2203/45681 , H03F2203/45698 , H03F2203/45726
摘要： A signal processing circuit includes a chopper amplifier (1) that has a differential amplifier circuit (AMP1) that amplifies differential input signals Vsp(t) and Vsm(t), and an adder circuit (1B) that generates an addition signal Vfil(t) by addition of the chopper output signal Vsub(t) that the chopper amplifier (1) generates. Differential signals inputted into the differential amplifier circuit (AMP1) are interchanged for every first phase period and second phase period, and the adder circuit (1B) generates the addition signal by addition of the chopper output signal in the first phase period and in the second phase period.

10. 发明公开

EP2359474A1 LOW VOLTAGE DIFFERENTIAL SIGNALING DRIVER WITH PROGRAMMABLE ON-CHIP RESISTOR TERMINATION 审中-公开
标题翻译：与可编程的片式电阻报表低电压差信令驱动器
公开(公告)号：EP2359474A1
公开(公告)日：2011-08-24
申请号：EP09764947.9
申请日：2009-11-20
申请人： QUALCOMM Incorporated
发明人： DIXIT, Abhay S. , SRINIVAS, Vaishnav
IPC分类号： H03F3/45 , H04L25/02
CPC分类号： H03F3/45946 , H03F3/45179 , H03F3/45475 , H03F2200/78 , H03F2203/45424 , H03F2203/45434 , H03F2203/45641 , H03F2203/45642 , H03F2203/45646 , H03F2203/45681 , H03F2203/45682 , H03F2203/45686 , H03F2203/45696 , H03F2203/45702 , H03F2203/45726 , H04L25/0272
摘要： A low voltage differential signaling driver is disclosed and may include a current steering output circuit having a first driver output and a second driver output. The low voltage differential signaling driver may also include a programmable on-chip resistor.

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