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1. 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。

2. 发明公开

EP0690562A1 Transconductor circuit with high-linearity differential input and active filter thereof 失效转让
标题翻译： Filter m Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter Filter
公开(公告)号：EP0690562A1
公开(公告)日：1996-01-03
申请号：EP94830324.3
申请日：1994-06-30
申请人： SGS-THOMSON MICROELECTRONICS S.r.l.
发明人： Rezzi, Francesco , Baschirotto, Andrea , Castello, Rinaldo
IPC分类号： H03F3/45 , H03H11/04
CPC分类号： H03F3/45076 , H03F2200/261 , H03H11/0433
摘要： The invention relates to a transconductor circuit with a differential input and a single output, comprising two input transistors (M1, M2) whose primary conduction terminals (D1, S1, D2, S2) are respectively connected together; in this way, variations in load current and voltage can be made lower, thereby also lowering distortion from changes in their transconductance.
摘要翻译：本发明涉及一种具有差分输入和单输出的跨导电路，包括其一次导通端子（D1，S1，D2，S2）分别连接在一起的两个输入晶体管（M1，M2）以这种方式，可以降低负载电流和电压的变化，从而也降低其跨导变化的变形。

3. 发明公开

EP0565806A1 Accurate MOS threshold voltage generator 有权
标题翻译：精确的MOS阈值电压发生器
公开(公告)号：EP0565806A1
公开(公告)日：1993-10-20
申请号：EP92830187.8
申请日：1992-04-16
申请人： SGS-THOMSON MICROELECTRONICS S.r.l.
发明人： Alini, Roberto , Baschirotto, Andrea , Castello, Rinaldo , Portaluri, Salvatore
IPC分类号： G05F3/24
CPC分类号： G05F3/24 , H03K17/145
摘要： A threshold voltage generator for a field-effect transistor, being of a type adapted to compensate for variations of the threshold voltage from a nominal value, comprises:
a first amplifier (2) having a first input (A) connected to a current generator (Id);
a second amplifier (3) connected ahead of a second input (B) of the first amplifier (A) and having an input connected to another current generator (Id);
a third amplifier (4) connected after the first amplifier (2) and having an output (U) adapted to produce the value of said threshold voltage (Vth).
摘要翻译：用于场效应晶体管的阈值电压发生器，其适于补偿阈值电压与标称值的变化的类型，包括：具有连接到电流发生器的第一输入（A）的第一放大器（2） ID）; 连接在第一放大器（A）的第二输入（B）之前并具有连接到另一个电流发生器（Id）的输入端的第二放大器（3）。连接在第一放大器（2）之后并且具有适于产生所述阈值电压（Vth）的值的输出（U）的第三放大器（4）。

4. 发明公开

EP0836275A1 High speed switched OP-AMP for low supply voltage applications 失效
标题翻译： Schneller geschalteter操作维护者安东尼昂
公开(公告)号：EP0836275A1
公开(公告)日：1998-04-15
申请号：EP96830524.3
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 , H03F3/72 , H03F1/08
CPC分类号： H03F3/72 , H03F1/086 , H03F2200/513
摘要： In a switched operational amplifier including a differential input stage and at least a second output stage the compensation capacitor (CC) commonly required to couple the output node of the second stage with the respective output node of the input differential stage of the amplifier is associated with switching means (M5P, M5N) controlled by the same control phase (Ph1) that enables/disables the amplifier for interrupting the connection between the compensation capacitor (CC) and the output node of the differential input stage during a phase in which the amplifier is disabled for reducing the switch-on time. Notably the differential input stage of the operational amplifier remains always active and only the second output stage is switched on and off.
摘要翻译：在包括差分输入级和至少第二输出级的开关运算放大器中，将第二级的输出节点与放大器的输入差分级的相应输出节点耦合的通常需要的补偿电容器（CC）与由相同的控制相位（Ph1）控制的开关装置（M5P，M5N），其能够/禁止放大器在放大器的相位期间中断补偿电容器（CC）和差分输入级的输出节点之间的连接禁用以减少接通时间。值得注意的是，运算放大器的差分输入级保持始终有效，只有第二个输出级接通和关断。

5. 发明授权

EP0565806B1 Accurate MOS threshold voltage generator 有权
标题翻译：具体地说MOS的阈值电压发生器
公开(公告)号：EP0565806B1
公开(公告)日：1996-08-28
申请号：EP92830187.8
申请日：1992-04-16
申请人： SGS-THOMSON MICROELECTRONICS S.r.l.
发明人： Alini, Roberto , Baschirotto, Andrea , Castello, Rinaldo , Portaluri, Salvatore
IPC分类号： G05F3/24
CPC分类号： G05F3/24 , H03K17/145

6. 发明公开

EP0690561A1 Method for erasing a common mode current signal and transconductor assembly using such method 失效转让
标题翻译：灭火的共模电流信号和跨导电路与这样的方法的方法
公开(公告)号：EP0690561A1
公开(公告)日：1996-01-03
申请号：EP94830323.5
申请日：1994-06-30
申请人： SGS-THOMSON MICROELECTRONICS S.r.l.
发明人： Rezzi, Francesco , Baschirotto, Andrea , Castello, Rinaldo
IPC分类号： H03F3/45
CPC分类号： H03F3/45964 , H03F3/45278 , H03F3/45717 , H03F2203/45024 , H03F2203/45068 , H03F2203/45078 , H03F2203/45394 , H03F2203/45648
摘要： The transconductor system in accordance with the present invention is the type comprising a first transconductor circuit (C1) having differential mode transconductance equal to a first value and common mode transconductance equal to a second value and is characterised in that it comprises a second transconductor circuit (C2) connected in parallel with said transconductor circuit (C1) having common mode transconductance substantially equal in modulus to said second value and of opposite sign.
In this manner the common mode current signal at the output is greatly reduced.
摘要翻译：跨导器系统在雅舞的本发明是包括第一跨导体电路（C1）具有差分模式的跨导等于一个第一值和共模跨导等于第二值的类型和被DASS它包括第二跨导器电路（ C2）与所述跨导器电路（C1并联连接），其具有共模跨导模量基本上等于所述第二值和相反的符号。以这种方式在输出的共模电流信号大大降低。

7. 发明公开

EP0689286A1 Low voltage, switched capacitance circuit employing switched operational amplifiers with maximized voltage swing 失效转让
标题翻译：使用低电源电压开关电容电路交换运算放大器具有优化的电压摆动
公开(公告)号：EP0689286A1
公开(公告)日：1995-12-27
申请号：EP94830318.5
申请日：1994-06-24
申请人： SGS-THOMSON MICROELECTRONICS S.r.l.
发明人： Castello, Rinaldo , Baschirotto, Andrea , Nagari, Angelo
IPC分类号： H03H19/00
CPC分类号： H03H19/00
摘要： A switched capacitance circuit functioning with unboosted control phases and using at least as an input switch of said switched capacitance a switched operational amplifier structure is provided with a switch for switching the output of the input operational amplifier to the supply node during an OFF-phase of the operational amplifier and another switch for switching to ground the output node of the switched capacitance during an ON-phase of said input operational amplifier in order to prevent charge losses via the substrate of the turn-on switches of the circuit. Precision is retained while ensuring a rail-to-rail dynamic range. Special arrangements may be implemented for controlling the amplitude of switching spikes when so required. A fully differential embodiment is also feasible with additional advantages.
摘要翻译：一种开关电容电路与未提升控制阶段起作用并且使用至少作为与所述的输入开关切换电容的切换运算放大器结构设置有一个开关，用于在在OFF相输入运算放大器的输出切换到电源节点运算放大器和另一个开关用于切换到接地开关电容的输出节点中的所述输入运算放大器中的导通相位，以防止经由该电路的导通开关的基片电荷损失。同时确保轨到轨动态范围精度得以保持。特别安排可以实现控制的。当这样需要的开关尖峰幅度。全差分实施例因此是用另外的优点是可行的。

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