od 1984. god.
    Knjige▹ElektrotehnikaAnalogna elektronikaMonografije

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    Autori: Branko Dokić, Tatjana Pešić-Brđanin
    Strana: 575
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    Veličina slova: A A
    Based on the operating mode of transistor as a basic active element, monolithic integrated circuits are divided into digital, analog (linear) and mixedsignal circuits. In digital circuits transistors operate in switching mode, so they are in either ON or OFF mode. Those modes represent bits. For practical reasons, bits are marked as ”0” or ”1”. In the early years of digital electronics, a bit sequence mostly represented numerical information, usually in binary code. Binary vocabulary is considerably enriched by digitalization of analog signals like audio or video signals. To digitalize a signal means to obtain its samples in discrete time intervals which, if close enough, can be
    used as its perfect replica. Digital integrated circuits process a digital signal, and analog process an analog signal. Analog signal is continuous over time and space. While digital signal modes are very stable and mostly independent of parameters of integrated circuit elements, analog signal is highly dependent of physical and electrical parameters of semiconductor devices. It is why the analog design is much more complex than digital one and requires intuition, rigor and creativity. Furthermore, analog integrated circuits use larger area active devices than digital designs and are usually less dense in circuitry. These are only a few reasons why the development and production of digital integrated circuits were much faster than analog. The explosive growth of digital electronics is based on computers and other digital systems widely used today in very different areas of technology such as: automation, radio and telecommunications, robotics, measuring techniques, entertainment electronics, automobile industry etc. The development and application of digital integrated circuits have a huge influence not only on development of economy, science and technology but on human civilization in general. Today we often say how everything is digitalized, and we even speak of digital intelligence. So where does the analog electronics belong? In the early 1980s many experts predicted the demise of analog circuits. However, the world as we experience it is not digital at all, but continuous. Everything we hear, see and feel in life is analog, from our voice, music, seismic movements, visual and biological perception, to the energy exchange. Since the physical world consists of signals in the continuous time domain, analog integrated circuits will be needed in the foreseeable future. All digitalized electrical systems must possess an interface over the analog circuits. It is simply impossible to imagine any life practical engineering solution without the help of highperformance analog integrated circuits. That is the reason why the market
    for analog integrated circuits is expanding every year.
    The digitalization also enabled faster development of analog integrated circuits, at least in two ways. Before the emergence of microprocessors in the 1970s and the corresponding software for circuit analysis and synthesis, the analog integrated circuits were designed using manual calculations. That is why the complexity of those circuits, at the time, was limited to around dozen transistors (operational amplifiers, comparators, analog multipliers and so on). In the early 1970s, the computer programs were written to simulate analog integrated circuits designs with greater accuracy than practical by manual calculation. The first circuit simulator was called SPICE(Simulation Program with Integrated Circuits Emphasis). On the other hand, the more the digitalization entered the real world, the
    need for various high-performance analog integrated circuits was increasing.

    For example, when digitalizing physical signals, an analog-to-digital (ADC) and a digital-to-analog (DAC) converters are always needed. That is how monolithic integrated circuits with mixed signal appeared. They are integrated circuits with processing of both analog and digital signals (ADC, DAC, smart sensors, digital signal processors DSP etc.) Modern devices of consumer electronics are inconceivable without the mixed-signal integrated circuits. Interface and processing of analog signals includes the following three groups of analog circuits or mixed-signal circuits and systems: power management (bias circuits, regulators, references, protection circuits), front-end interface (sensors, amplifiers, ADC, filters) and back-end interface (DAC, amplifiers, filters, power drivers). The analog (linear) courses on many faculties, although addressing the microelectronic technologies, are conceptually more based on discrete analog circuits. Luckily, the basic principles that govern the analysis and designing of electronic circuits, are not nearly as prone to changes as technologies of their implementation. It the opinion of authors of this book, it is much more rational that these principles should be illustrated on examples of actual technologies, and only to address the specifics of nonstandard techniques.

    This book is the result of efforts to include the analog integrated circuits technology in general electronics course in the early phase of academic process. Numerous solved examples inside each chapter will help the students to grasp more easily the principles and laws behind the content of those chapters. Unsolved problems and questions at the end of each chapter should help the students to verify acquired knowledge. The analysis of a circuit is based on manual calculations, therefore simplified small-signal transistor models are used. It is our objective that students understand the influence of key elements parameters on basic circuit characteristics. We assume that the students are previously trained to use
    SPICE simulator so detailed analysis of more complex circuits is planned for practical classes.

    Development of analog integrated circuits from the beginning until today has passed several phases. Initially, these circuits were designed and
    manufactured in bipolar technology that was followed by a rapid development of analog circuits realized in MOS technology. Afterward, a BiCMOS technology, which combines bipolar and CMOS components on a single chip, emerged as a serious competitor and, recently, as a leader in analog integrated circuits production. In order to reduce the costs and power dissipation of the electronic systems, analog and digital circuits are often technologically integrated, which provides strong economic motivation for usage of CMOS compatible circuits. Although in some cases the production of linear BiCMOS circuits is more expensive, it allows the designer of analog integrated circuits to utilize the best features of bipolar and MOS components in various innovative combinations of their characteristics. Also, BiCMOS technology enables the reduction of design time, since it allows the direct use of a large number of existing cells for realization of the given analog functions. In this book, both bipolar and MOS devices and circuits were described in a way that is suitable for combining them later in BiCMOS technologies chapter. For engineers that will deal with the design of analog integrated circuits, the knowledge of bipolar and MOS devices similarities and differences is of a great importance, which determines the selection of suitable devices and topologies for the required circuit performance. In the first chapter, a classification of integrated circuits with respect to
    characteristic parameters was described. Considering the fact that the application of integrated circuits became very complex in the last few decades,
    we outlined classifications with respect to technology and technique of production, scale of integration, operation mode, design methodology, and ap-plication of integrated circuits. The second chapter is dedicated to the planar technology used for production of monolithic integrated circuits. All phases are explained in detail, and, in addition, modern processes that are found in individual phases were given.

    Relationship between production technologies of integrated circuits and basic devices was described in the third and fourth chapter. In the book, the basic and advanced techniques for production of bipolar and MOS transistors in silicon technology were given as well. The existence of parasitic elements and structures was pointed out. It was shown how technological parameters and polarizations may affect the static and dynamic characteristics of bipolar and MOS devices. The second-order effects, which occur while bipolar and MOS transistor operating, were specially treated. Small-signal models that are used in SPICE were given. The fifth chapter is dedicated to the description of the development of modern bipolar and MOS transistors structures that emerge in nanometer technologies and are used in RF electronics and telecommunications. The comparative characteristics of the technologies that are developed on substrates of different materials, as well as the characteristics of the transistors (MESFET, HEMT, HBT) that are developed in these technologies were

    Topology and characteristics of basic circuits, which are used for design of more complex analog integrated circuits, were described in the sixth
    chapter. Special attention was paid to constant current sources, differential amplifiers, voltage amplifiers, voltage sources, voltage reference sources and
    output stages of integrated circuits. Peculiarities of each group of analog integrated circuits mentioned above, as well as their possibilities and limitations, were pointed out. The topologies of these circuits in bipolar and MOS technology were analyzed in parallel.
    RF elementary circuits are described in Chapter 7.
    Operational amplifier is the most popular analog integrated circuit. Considering the variety of applications it is justly regarded as a device. In Chapter 8, general characteristics of operational amplifiers, with emphasis on the specifics of particular types, were considered. The most commonly used operational amplifier 741 was analyzed separately, and its static and dynamic parameters were calculated and given in this chapter. CMOS two stage opamps and CMOS transconductance amplifiers are also analyzed.
    In Chapter 9, standard applications of operational amplifiers are de-scribed. Here, the op-amp is regarded not as circuit but as device. Also described are different configurations of op-amps as voltage or current amplifiers, voltage-to-current and current-to-voltage converters, analog arithmetic circuits, linear and pulse oscillators, active filters and comparators. In the Chapter 10, the basic principles of the voltage regulation and stabilization were explained, and then, general-purpose, three-terminal and dual-tracking integrated regulators were described. Special attention was paid to current and thermal protection of regulators. Methods of application of regulators in various configuration of supply blocks. There are often problems of comprehension of a text when authors are
    not from the English speaking regions.

    Detaljni podaci o knjizi
    Izdavač: Akademska misao
    Strana: 575 (cb)
    Povez: tvrdi
    Pismo: latinica
    Format: cm
    Godina izdanja: 2017
    ISBN: 9788674667279
    Cena: 5.940 RSD
    Cena za inostranstvo:
    59,00 EUR
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