具有轨对轨输入和输出范围的1伏运算放大器

IEEE International Solid-State Circuits Conference, 1989 ISSCC. Digest of Technical Papers Pub Date : 1900-01-01 DOI:10.1109/ISSCC.1989.48180

J. Fonderie, Marinus G. Maris, J. Huijsing

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引用次数: 18

摘要

设计了一种双极集成运算放大器(运放)，当电源电压为1v或更高时，可以在几乎整个电源电压范围内工作，其输入级可以处理超出电源轨道的信号，输出级可以在电源轨道的10mv范围内工作。该运放的特性为0.7 mv偏置、75 nv /平方根Hz噪声、450 khz带宽和40 db最坏情况共模抑制比。输入和输出阶段如下图所示。

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1-volt operational amplifier with rail-to-rail input and output ranges

A bipolar integrated operational amplifier (op amp), operating over nearly the full supply voltage range when the supply voltage is 1 V or more, has been designed with an input stage which can handle signals beyond the supply rails and an output stage which is able to operate within 10 mV of the supply rails. Characteristics of the op amp are 0.7-mV offset, 75-nV/ square root Hz noise, 450-kHz bandwidth, and 40-dB worst-case common-mode rejection ratio. The input and output stages are shown.<>

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来源期刊

IEEE International Solid-State Circuits Conference, 1989 ISSCC. Digest of Technical Papers

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