CMOS Analog Circuit Design - Allen, Holberg by Phillip E. Allen, Douglas R. Holberg, Allen

By Phillip E. Allen, Douglas R. Holberg, Allen

After years of anticipation, revered authors Phil Allen and Doug Holberg carry you the second one variation in their well known textbook, CMOS Analog Circuit Design. From the vanguard of CMOS expertise, Phil and Doug have mixed their services as engineers and teachers to provide a state of the art and powerful evaluation of the foundations and methods for designing circuits. Their major ambitions are:

· to combine the tutorial and useful viewpoints in a therapy that's neither superficial nor overly special and
· to coach analog built-in circuit layout with a hierarchically equipped approach.

lots of the options and rules provided within the moment version were taught during the last ten years to individuals. Their wishes and questions have vastly formed the revision method, making this new version a worthy source for practising engineers.

The trademark method of Phil and Doug's textbook is its layout recipes, which take readers step by step during the production of actual circuits, explaining advanced layout difficulties. The booklet presents targeted assurance of often-neglected parts and intentionally leaves out bipolar analog circuits, considering the fact that CMOS is the dominant know-how for analog built-in circuit layout. acceptable for complex undergraduates and graduate scholars with history wisdom in simple electronics together with biasing, modeling, circuit research, and frequency reaction, CMOS Analog Circuit layout, moment Edition, provides a whole photograph of layout (including modeling, simulation, and checking out) and permits readers to layout an analog circuit that may be carried out by means of CMOS technology.

Features
· Orients the event of the professional in the standpoint of layout methodology
· Identifies universal errors made by means of starting designers
· offers issues of each one bankruptcy that toughen and advance scholar understanding
· includes quite a few difficulties that may be used as homework, quiz, or examination problems
· features a new part on switched-capacitor circuits
· comprises valuable appendices that supply simulation concepts and the next supplemental material:
a quick assessment of circuit research for CMOS analog design
A calculator software for reading CMOS circuits
A precis of time-frequency area relationships for second-order structures

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Extra resources for CMOS Analog Circuit Design - Allen, Holberg

Sample text

Note that the Zener diode is compatible with the basic CMOS process although one terminal of the Zener must be either on the lowest power supply, V SS, or the highest power supply, VDD. 2-4 Reverse-bias volgate-current characteristics of the pn junction illustrating voltage breakdown. The diode voltage-current relationship can be derived by examining the minoritycarrier concentrations in the pn junction. Fig. 2-5 shows the minority-carrier concentration for a forward-biased pn junction. The majority-carrier concentrations are much larger and are not shown on this figure.

The depletion region consists of fixed ions which have a negative charge. , F/m2 ). Allen/Holberg : Chapter 2 : 1/14/01 ⌠ρ ⌠− qNA − qNA E(x) =  dx =  dx = x +C ⌡ε ⌡ εsi εsi 27 (2) where C is the constant of integration. The constant, C, is determined by evaluating E(x) at the edges of the depletion region (x = 0 at the Si-SiO 2 interface; x = xd at the boundary of the depletion region in the bulk). E(0) = E0 = E(xd) = 0 = C= − qNA 0 +C=C εsi − qNA xd + C εsi qNA xd εsi (3) (4) (5) This gives an expression for E(x) E(x) = qNA (xd − x) εsi (6) Applying the relationship between potential and electric field yields ⌠qNA ⌠ ⌠ (xd −x) dx ⌡ dφ = − ⌡E(x) dx = −  ⌡ εsi Integrating both sides of Eq.

These passive components include the capacitor and the resistor. Capacitors A good capacitor is often required when designing analog integrated circuits. They are used as compensation capacitors in amplifier designs, as bandwidth-determining components in gm/C filters, as charge storage devices in switched-capacitor filters and digital-to-analog converters, and other places as well. The desired characteristics for capacitors used in these applications are given below: • • • • Good matching accuracy Low voltage-coefficient High ratio of desired capacitance to parasitic capacitance High capacitance per unit area Analog CMOS processes differentiate themselves from purely digital ones by providing capacitors that meet the above criteria.

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