Pseudo-differential amplifiers
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专利名称:Pseudo-differential amplifiers
发明人:Leonard Forbes
申请号:US09255077
申请日:19990222
公开号:US06377084B2
公开日:
20020423
专利内容由知识产权出版社提供
专利附图:
摘要:Single input receivers and “pseudo differential” amplifiers can conserve scarce chip surface area and still provide fast response times in a low power CMOS environment.
A first embodiment includes a single ended receiver. The single ended receiver includes a pair of cross coupled inverters. Each of the inverters includes a pair of output
transmission lines. A single signal input node coupled to a source region for one of the pair of cross coupled inverters and to a current mirror such that the single ended receiver is able to convert a single ended input current received at the single signal input node into a differential input signal. A second embodiment includes a pseudo differential amplifier. The pseudo differential amplifier includes a pair of cross coupled transistors. The pseudo differential amplifier includes a pair of signal output nodes. A single signal input node is coupled to a source region for one of the transistors in the pair of cross coupled transistors and to a current mirror such that the pseudo differential amplifier is able to convert a single ended input current received at the single signal input node into a differential input signal. Methods of operation and methods of forming the single ended receivers and pseudo differential amplifiers are similarly included. The single ended receivers and pseudo differential amplifiers are fabricated in a streamlined CMOS process and provide responsive performance for single input current signal 2.0 mA and lower.
申请人:MICRON TECHNOLOGY, INC.
代理机构:Schwegman, Lundberg, Woessner & Kluth, P.A.
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