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2. 发明公开

EP0766381A1 Improved single-ended to differential converter with relaxed common-mode input requirements 失效
标题翻译： Verbesserter Eintakt / Differenzumsetzer mitbeschränktemGleichtakteingangssignalbedarf
公开(公告)号：EP0766381A1
公开(公告)日：1997-04-02
申请号：EP96115135.4
申请日：1996-09-20
申请人： ROCKWELL INTERNATIONAL CORPORATION
发明人： Stubbe, Frederic M. , Ahmed, Kashif A. , Shamlou, Daryush , Yin, Guanming
IPC分类号： H03F3/45
CPC分类号： H03F3/45475 , H03F3/45932 , H03F2203/45528
摘要： A converter for converting a single-ended input V IN to a differential output signal V OUT through positive and negative output terminals is disclosed. The converter comprises a fully differential amplifier with one of its input terminals coupled to the single-ended input and its other input terminal coupled to a fixed voltage. The converter also has a first resistor ("R 1 ") coupled between the single-ended input and the positive input terminal of the fully differential amplifier, a second resistor ("R 2 ") coupled between the fixed voltage and the negative input terminal of the fully differential amplifier, a third resistor ("R 3 ") coupled between the positive input terminal and the negative output terminal of the fully differential amplifier, and a fourth resistor ("R 4 ") coupled between the negative input terminal and the positive output terminal, wherein the values of such resistors are governed by: R 3 R 1 ≠ R 4 R 2 . The same principles can be applied to differential-to-single-ended converters as well.
摘要翻译：公开了一种用于通过正和负输出端将单端输入VIN转换成差分输出信号VOUT的转换器。该转换器包括全差分放大器，其一个输入端耦合到单端输入，其另一输入端耦合到一固定电压。转换器还具有耦合在全差分放大器的单端输入端和正输入端之间的第一电阻（“R1”），耦合在固定电压与负输入端之间的第二电阻（“R2”）全差分放大器，耦合在全差分放大器的正输入端和负输出端之间的第三电阻（“R3”）和耦合在负输入端和正输出端之间的第四电阻（“R4”），其中这些电阻的值由以下控制：相同的原理也可应用于差分到单端转换器。

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