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1.发明公开Integrated circuit for physiological signal measurement 失效Integrierte Schaltung zum Messen von physiologischen Signalen。
公开(公告)号：EP0568198A2
公开(公告)日：1993-11-03
申请号：EP93302548.8
申请日：1993-03-31
IPC分类号： G01R19/25 , A61B5/0428
CPC分类号： H03F3/45968 , A61B5/7203 , G06F19/00 , G16H40/40 , G16H40/63 , H03F3/45188 , H03F3/45659 , H03F3/45775 , H03F2200/331
摘要： A mixed analog and digital integrated circuit for physiological signal instrumentation such as electrocardiographs, electromyographs, and electroencephalographs comprises analog signal amplifiers (126) connected to A/D converters (346) and an analog signal summer (122) for generating from analog averaging inputs (1300) an averaging output (336), and averaging switches (1302) which associate individual averaging inputs (1300) to the outputs of corresponding analog signal amplifiers (126) in dependence upon a digital averaging selection bits generated by a digital control (1902, 1904, 1906, 1912) in response to an external input (366). The integrated circuit has five signal channels, each with analog amplification and analog to digital conversion. The channels can be configured for various combinations of input signal amplification, input signal summation, analog output driving, and AC impedance measurement. The integrated circuit has two digital serial input lines and two digital serial output lines, all designed for direct connection to optical couplers. Channel configuration, gain, and other parameters are externally controllable by a serial digital input signal. Up to six compatible devices can be serially connected in a chain.
摘要翻译： 用于诸如心电图仪，肌电描记器和脑电图仪的生理信号仪器的混合模拟和数字集成电路包括连接到A / D转换器（346）的模拟信号放大器（126）和用于从模拟平均输入（ 1300）平均输出（336）和平均开关（1302），其根据由数字控制（1902）产生的数字平均选择位将各个平均输入（1300）与相应模拟信号放大器（126）的输出相关联， 1904,1906,1912）响应于外部输入（366）。 该集成电路有五个信号通道，每个通道具有模拟放大和模数转换。 通道可配置为输入信号放大，输入信号求和，模拟输出驱动和交流阻抗测量的各种组合。 集成电路具有两条数字串行输入线和两条数字串行输出线，全部设计用于直接连接光耦合器。 通道配置，增益和其他参数可通过串行数字输入信号进行外部控制。 多达六个兼容的设备可以串连在一起。
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公开(公告)号：EP1442518B1
公开(公告)日：2009-09-23
申请号：EP02775053.8
申请日：2002-10-01
申请人： NXP B.V.
发明人： REBER, Martin
IPC分类号： H03F3/45
CPC分类号： H03F3/45775 , H03F2200/331
摘要： The invention relates to an operational amplifier comprising a first transistor amplifier stage at an input of the operational amplifier, which first transistor amplifier stage comprises chopped transistors, a second transistor amplifier stage cascoded to the first transistor amplifier stage, which second transistor amplifier stage is connected between the chopped first transistor amplifier stage and a supply voltage source, wherein the gain at the output of the chopped first transistor amplifier stage is reduced to gm1,2/gm3,4, where gm1,2*Rc is the gain of the first transistor amplifier stage, gm3,42*Rc is the gain of the second transistor amplifier stage and Rc is the resistance of the resistor between an output of the operational amplifier and the supply voltage source. An operational amplifier circuit comprises a main operational amplifier as specified above and feedback loops including capacitors between the inputs and outputs of the operational amplifier to form an integrator circuit or a filter circuit.
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公开(公告)号：EP0410295B1
公开(公告)日：1996-04-10
申请号：EP90113802.4
申请日：1990-07-19
申请人： MOTOROLA, INC.
发明人： Mijuskovic, Dejan
IPC分类号： H03F3/393
CPC分类号： H03F1/303 , H03F3/45192 , H03F3/45775 , H03F2200/81
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公开(公告)号：EP0568198A3
公开(公告)日：1994-09-21
申请号：EP93302548.8
申请日：1993-03-31
IPC分类号： G01R19/25 , A61B5/0428
CPC分类号： H03F3/45968 , A61B5/7203 , G06F19/00 , G16H40/40 , G16H40/63 , H03F3/45188 , H03F3/45659 , H03F3/45775 , H03F2200/331
摘要： A mixed analog and digital integrated circuit for physiological signal instrumentation such as electrocardiographs, electromyographs, and electroencephalographs comprises analog signal amplifiers (126) connected to A/D converters (346) and an analog signal summer (122) for generating from analog averaging inputs (1300) an averaging output (336), and averaging switches (1302) which associate individual averaging inputs (1300) to the outputs of corresponding analog signal amplifiers (126) in dependence upon a digital averaging selection bits generated by a digital control (1902, 1904, 1906, 1912) in response to an external input (366). The integrated circuit has five signal channels, each with analog amplification and analog to digital conversion. The channels can be configured for various combinations of input signal amplification, input signal summation, analog output driving, and AC impedance measurement. The integrated circuit has two digital serial input lines and two digital serial output lines, all designed for direct connection to optical couplers. Channel configuration, gain, and other parameters are externally controllable by a serial digital input signal. Up to six compatible devices can be serially connected in a chain.
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公开(公告)号：EP3281201A1
公开(公告)日：2018-02-14
申请号：EP16715781.7
申请日：2016-04-01
发明人： JUNG, Seong-Ook , NA, Taehui , KIM, Jisu , KIM, Jung Pill , KANG, Seung Hyuk
CPC分类号： G11C7/08 , G11C5/10 , G11C7/062 , G11C7/12 , G11C7/14 , G11C11/1673 , G11C13/004 , G11C16/28 , G11C2013/0042 , G11C2013/0054 , H03F3/45179 , H03F3/45775 , H03F2203/45212
摘要： An offset cancelling sense amplifier according to some examples of the disclosure may use a double sensing margin structure and positive feedback to achieve better performance characteristics and read stability without a multistage operation. For example, a sense amplifier may include a second pair of sensing switches cross coupled in parallel with a first pair of sensing switches and a pair of degeneration transistors coupled in line before a pair of load transistors.
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6.发明公开Noise reduction technique in current steered chopper stabilized amplifier 审中-公开技术为stromgesteurten菜刀推挽放大器降噪
公开(公告)号：EP1193859A3
公开(公告)日：2004-06-30
申请号：EP01308383.7
申请日：2001-10-01
申请人： Cirrus Logic, Inc.
IPC分类号： H03F1/30
CPC分类号： H03F3/38 , H03F3/45192 , H03F3/4565 , H03F3/45739 , H03F3/45775 , H03F2203/45356 , H03F2203/45631 , H03F2203/45651 , H03F2203/45682
摘要： Disclosed is a chopper-stabilized amplifier with current steering used as output switching arid to be operated in a low power supply voltage environment.
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公开(公告)号：EP0897143B1
公开(公告)日：2001-10-04
申请号：EP98113265.7
申请日：1998-07-16
发明人： Kuttner, Franz
IPC分类号： G05F3/30
CPC分类号： H03F3/45775 , G05F3/30 , H03F2200/81 , Y10S323/907
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公开(公告)号：EP0897143A2
公开(公告)日：1999-02-17
申请号：EP98113265.7
申请日：1998-07-16
发明人： Kuttner, Franz
IPC分类号： G05F3/30
CPC分类号： H03F3/45775 , G05F3/30 , H03F2200/81 , Y10S323/907
摘要： Es werden eine Bandgap-Referenzspannungsquelle mit einem insbesondere zur Temperaturkompensation vorgesehenen Operationsverstärker und ein Verfahren zum Betreiben derselben beschrieben. Die Bandgap-Referenzspannungsquelle ist dazu ausgelegt, daß die Eingangssignale (E1, E2) des Operationsverstärkers oder dessen Eingangsstufen (TE1, TL1; TE2, TL2) vertauschbar sind und/oder das Ausgangssignal (A) des Operationsverstärkers wahlweise basierend auf dem Potential eines Knotenpunktes (x5) einer ersten Eingangsstufe (TE1, TL1) oder dem Potential eines Knotenpunktes (x6) einer zweiten Eingangsstufe (TE2, TL2) erzeugbar ist.
摘要翻译： 电压源包括用于温度补偿的运算放大器（OP），其包括第一输入级（TE1，TL1），在该第一输入级提供第一节点（x5）的电压，第二输入级（TE2， TL2），其中提供第二节点（x6）的电压。 第一和第二输入级提交输出信号（A）。 提供了一种开关装置（S1至S4），其以这种方式形成，即通过其激活将第一输入信号（E1）或第二输入信号（E2）交替地提供给第一输入级，并且第二输入信号 输入信号或第一输入信号分别提供给第二输入级，和/或运算放大器的输出信号交替地从第一节点或第二节点输出。
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9.发明公开Noise reduction technique in current steered chopper stabilized amplifier 审中-公开Cho per Cho ker ker ker ker ker ker ker ker ker ker ker ker ker
公开(公告)号：EP1193859A2
公开(公告)日：2002-04-03
申请号：EP01308383.7
申请日：2001-10-01
申请人： CIRRUS LOGIC INC.
IPC分类号： H03F1/30
CPC分类号： H03F3/38 , H03F3/45192 , H03F3/4565 , H03F3/45739 , H03F3/45775 , H03F2203/45356 , H03F2203/45631 , H03F2203/45651 , H03F2203/45682
摘要： Disclosed is a chopper-stabilized amplifier with current steering used as output switching arid to be operated in a low power supply voltage environment.
摘要翻译： 公开了一种具有电流转向的斩波稳定放大器，用作输出开关，并在低电源电压环境下工作。
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公开(公告)号：EP0568198B1
公开(公告)日：1999-02-03
申请号：EP93302548.8
申请日：1993-03-31
IPC分类号： G01R19/25 , A61B5/0428
CPC分类号： H03F3/45968 , A61B5/7203 , G06F19/00 , G16H40/40 , G16H40/63 , H03F3/45188 , H03F3/45659 , H03F3/45775 , H03F2200/331
摘要： A mixed analog and digital integrated circuit for physiological signal instrumentation such as electrocardiographs, electromyographs, and electroencephalographs comprises analog signal amplifiers (126) connected to A/D converters (346) and an analog signal summer (122) for generating from analog averaging inputs (1300) an averaging output (336), and averaging switches (1302) which associate individual averaging inputs (1300) to the outputs of corresponding analog signal amplifiers (126) in dependence upon a digital averaging selection bits generated by a digital control (1902, 1904, 1906, 1912) in response to an external input (366). The integrated circuit has five signal channels, each with analog amplification and analog to digital conversion. The channels can be configured for various combinations of input signal amplification, input signal summation, analog output driving, and AC impedance measurement. The integrated circuit has two digital serial input lines and two digital serial output lines, all designed for direct connection to optical couplers. Channel configuration, gain, and other parameters are externally controllable by a serial digital input signal. Up to six compatible devices can be serially connected in a chain.
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