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Analysis_and_Design_of_Analog_Integrated_Circuits_5thPaul_R._Gray
时间:2019-05-27
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Since the publication of the first edition of this book, the field of analog integrated circuits has developed and matured. The initial groundwork was laid in bipolar technology, followed by a rapid evolution of MOS analog integrated circuits. Thirty years ago, CMOS technologies were fast enough to support applications only at audio frequencies. However, the continuing reduction of the minimum feature size in integrated-circuit (IC) technologies has greatly increased the maximum operating frequencies, and CMOS technologies have become fast enough for many new applications as a result. For example, the bandwidth in some video applications is about 4 MHz, requiring bipolar technologies as recently as about twenty-three years ago. Now, however, CMOS easily can accommodate the required bandwidth for video and is being used for radio-frequency applications.Today, bipolar integrated circuits are used in some applications that require very low noise, very wide bandwidth, or driving low-impedance loads. In this fifth edition, coverage of the bipolar 741 op amp has been replaced with a lowvoltage bipolar op amp, the NE5234, with rail-to-rail common-mode input range and almost rail-to-rail output swing. Analysis of a fully differential CMOS folded-cascode operational amplifier (op amp) is now included in Chapter 12. The 560B phase-locked loop, which is no longer commercially available, has been deleted from Chapter 10. The SPICE computer analysis program is now readily available to virtually all electrical engineering students and professionals, and we have included extensive use of SPICE in this edition, particularly as an integral part of many problems.We have used computer analysis as it is most commonly employed in the engineering design process—both as a more accurate check on hand calculations, and also as a tool to examine complex circuit behavior beyond the scope of hand analysis.
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