Abstract
The main purpose of the input stage of an operational amplifier is to amplify differential signals and to reject common-mode input voltages. An important specification of an input stage is the common-mode input range. If the common-mode voltage is kept within this range, the input stage will properly respond to small differential signals. Hence, an application has to be designed such that the common-mode input voltage stays within the common-mode input range. Other important specifications of the input stage are the input referred noise, offset and the common-mode rejection ratio.
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© 1996 Springer Science+Business Media Dordrecht
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Hogervorst, R., Huijsing, J.H. (1996). Input Stages. In: Design of Low-Voltage, Low-Power Operational Amplifier Cells. The Springer International Series in Engineering and Computer Science, vol 374. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-2489-9_3
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DOI: https://doi.org/10.1007/978-1-4757-2489-9_3
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