Abstract
The purpose of this chapter is to introduce specific features of circuit design of modern op-amps, their parameters, characteristics and macromodels to ensure effective use and proper design of electronic devices based on these op-amps. The necessary prerequisite is the knowledge of theory of amplifiers within the course “Electronics” or “Electronics in Instrument Making.” Having studied this Chapter, one will be able to determine the structure of an operational amplifier, analyze circuits, basic parameters and characteristics, and know their structural differences.
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Notes
- 1.
Appearance of operational amplifiers is associated with Harold S. Black, who, working in Bell Labs, proposed op-amps for telephony in 1934 [2].
- 2.
It is PRC for the noninverting input. For the inverting input, –π should be added at any frequency.
- 3.
For simplicity, reverse transfer elements are excluded in Fig. 1.8.
- 4.
See, for example, A.F. Beletskii, Principles of Theory of Linear Electrical Circuits (Svyaz, Moscow, 1967).
- 5.
There are similar models constructed in bipolar (PNP) and field-effect (FET) transistors.
- 6.
Abbreviation CFOA is an improper one because there is no feedback in the amplifier. Moreover the op-amp can be used without the feedback.
- 7.
The term “rail-to-rail” is registered trademark of Nippon Motorola Ltd.
References
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Analog Deices: 60 MHz, 2000 V/μs Monolitic Op Amp AD844, URL: http://www.analog.com/static/imported-files/data_sheet/AD844.pdf. Assessed 3 Mar 2011
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Rybin, Y.K. (2012). Modern Operational Amplifiers. In: Electronic Devices for Analog Signal Processing. Springer Series in Advanced Microelectronics, vol 33. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-2205-7_1
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DOI: https://doi.org/10.1007/978-94-007-2205-7_1
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