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Operational Amplifiers pp 57–103Cite as

Input Stages

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Abstract

The input stage of an operational amplifier has the task of sensing the differential input voltage. This process is disturbed by interference signals such as offset, bias, drift, noise, and common-mode crosstalk. The modeling of these signals has been given in Chap. 2. The level of these additive interference signals determines the useful sensitivity of the amplifier. The design of the input stage should aim at low values of these interference signals, while the current consumption should be low, and a large portion of the rail-to-rail range should be available for common-mode signals.

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Authors and Affiliations

  1. Faculty of Electrical Engineering Mathematics and Computer Sciences (EEMCS), Delft University of Technology, Delft, The Netherlands

    Johan Huijsing

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  1. Johan Huijsing
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Huijsing, J. (2017). Input Stages. In: Operational Amplifiers. Springer, Cham. https://doi.org/10.1007/978-3-319-28127-8_4

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  • DOI: https://doi.org/10.1007/978-3-319-28127-8_4

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  • Print ISBN: 978-3-319-28126-1

  • Online ISBN: 978-3-319-28127-8

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