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1. 发明申请

WO02052720A3 CIRCUIT FOR LOW NOISE, FULLY DIFFERENTIAL AMPLIFICATION 审中-公开
标题翻译：电路低噪声全差分增益
公开(公告)号：WO02052720A3
公开(公告)日：2003-02-27
申请号：PCT/EP0114288
申请日：2001-12-05
申请人： INFINEON TECHNOLOGIES AG , SCHIMPER MARKUS , MECHNIG STEPHAN , SCHLEDZ RALF
发明人： SCHIMPER MARKUS , MECHNIG STEPHAN , SCHLEDZ RALF
IPC分类号： H03F1/26 , H03F3/45
CPC分类号： H03F3/45183 , H03F3/45654
摘要： The invention relates to a circuit for low noise, fully differential amplification. A feedback signal (121) is detected in a differential output step of the differential amplification circuit by means of a voltage distributor formed by a first feedback resistance (119) and a second feedback resistance (120). A first output signal (111) is provided at a first output circuit node (117) and a second output signal (112) is provided at a second output circuit node (118). The respective first and second output signals (111) or (112) form a full output signal which corresponds to an input signal formed by a first and a second input signal (101) or (102). A load current (134), an input current (132) and a reference current (132) are established by means of a load current source (128), an input current source (131) and a reference current source (127). A matching transistor (301) is used to adjust an adaptation between the load current source (128), the input current source (131) and the reference current source (127). A feedback signal (121) of the differential amplification circuit is compared with a reference voltage (122) in a reference step, and the load current (134) is mirrored in the differential input step, in a current mirror device.
摘要翻译：本发明提供一种低噪声全差分放大，其特征在于，使用第一反馈电阻器（119）和形成的第二反馈电阻电压分配器（120）中的一个的反馈信号（121）设置在所述差动放大器电路的差分输出级确定的电路布置。的第一输出信号（111）在第一输出节点（117）被提供，而在第二输出节点（118）提供的第二输出信号（112）。相应的第一和第二输出信号（111）和（112）形成对应于第一和第二输入信号（101）和（102）的输入信号的复合的整体输出信号。由负载电流源（128）的装置，输入功率源（131）和参考电流源（127）在每种情况下确定的Laststom（134）的输入电流（132）和一个参考电流（133）。调整晶体管（301）是负载电流源（128），所述Eingangssromquelle（131）和所述参考电流源（127）之间的匹配的设定。在一个Refernzstufe差分放大器电路的反馈信号（121）与参考电压（122），并在电流镜装置相比，负载电流（134）在所述差分输入级被镜像。

2. 发明申请

WO02052720A8 CIRCUIT FOR LOW NOISE, FULLY DIFFERENTIAL AMPLIFICATION 审中-公开
标题翻译：提供全差分增益的电路布置
公开(公告)号：WO02052720A8
公开(公告)日：2003-04-10
申请号：PCT/EP0114288
申请日：2001-12-05
申请人： INFINEON TECHNOLOGIES AG , SCHIMPER MARKUS , MECHNIG STEPHAN , SCHLEDZ RALF
发明人： SCHIMPER MARKUS , MECHNIG STEPHAN , SCHLEDZ RALF
IPC分类号： H03F1/26 , H03F3/45
CPC分类号： H03F3/45183 , H03F3/45654
摘要： The invention relates to a circuit for low noise, fully differential amplification. A feedback signal (121) is detected in a differential output step of the differential amplification circuit by means of a voltage distributor formed by a first feedback resistance (119) and a second feedback resistance (120). A first output signal (111) is provided at a first output circuit node (117) and a second output signal (112) is provided at a second output circuit node (118). The respective first and second output signals (111) or (112) form a full output signal which corresponds to an input signal formed by a first and a second input signal (101) or (102). A load current (134), an input current (132) and a reference current (132) are established by means of a load current source (128), an input current source (131) and a reference current source (127). A matching transistor (301) is used to adjust an adaptation between the load current source (128), the input current source (131) and the reference current source (127). A feedback signal (121) of the differential amplification circuit is compared with a reference voltage (122) in a reference step, and the load current (134) is mirrored in the differential input step, in a current mirror device.
摘要翻译：本发明提供一种低噪声全差分放大，其特征在于，使用第一反馈电阻器（119）和形成的第二反馈电阻电压分配器（120）中的一个的反馈信号（121）设置在所述差动放大器电路的差分输出级确定的电路布置。第一输出节点（111）设置在第一输出节点（117）处，而第二输出（112）设置在第二输出节点（118）处。相应的第一和第二输出信号（111）和（112）分别形成对应于由第一和第二输入信号（101）和（102）组成的输入信号的总输出信号。借助负载电流源（128），输入电流源（131）和参考电流源（127）分别确定负载电流（134），输入电流（132）和参考电流（133）。匹配晶体管（301）用于调整负载电流源（128），输入电流源（131）和参考电流源（127）之间的调整。在参考级中，差分放大器电路装置的反馈信号（121）与参考电压（122）进行比较，并且在电流镜装置中，负载电流（134）被镜像到差分输入级中。

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