运算放大器轨对轨输出级的简化AB类控制电路

ESSCIRC '92: Eighteenth European Solid-State Circuits conference Pub Date : 1992-09-01 DOI:10.1109/ESSCIRC.1992.5468260

W. Renirie, J. H. Huijsing

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引用次数: 5

摘要

提出了一种解决轨到轨输出级AB类控制问题的新方法。将一步一步地讨论五个简单的AB类控制电路，展示“共模馈电并联”的优点。其中一个控制电路已经在一个简化的两级OPAMP中实现，其带宽为2.5MHz，轨到轨输出范围和输入共模范围一直到负轨。显微照片以及半定制设计的测量结果包括在内。

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Simplified Class AB Control Circuits for Rail to Rail Output Stages of Operational Amplifiers

A new approach to solving the problem of class AB control of rail to rail output stages is presented. Step by step five simple class AB control circuits will be discussed, showing the advantages of 'common mode feed parallel'. One of the control circuits has been implemented in a simplified two stage OPAMP with a 2.5MHz bandwith, rail to rail output range and an input common mode range down to the negative rail. A photomicrograph as well as measurement results of a semicustom design are included.

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ESSCIRC '92: Eighteenth European Solid-State Circuits conference

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