Read e-book online Precision Temperature Sensors in CMOS Technology (Analog PDF

By Micheal A.P. Pertijs, Johan Huijsing

ISBN-10: 140205257X

ISBN-13: 9781402052576

This publication describes the research and layout of precision temperature sensors in CMOS IC know-how, concentrating on so-called shrewdpermanent temperature sensors, which offer a electronic output sign that may be effortlessly interpreted via a working laptop or computer. The textual content indicates how temperature features can be utilized to procure a correct electronic temperature interpreting. The ebook ends with a close description of 3 prototypes, certainly one of which achieves the easiest functionality mentioned so far.

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Reprint of the educational Press, long island and London, 1989 variation.

Extra info for Precision Temperature Sensors in CMOS Technology (Analog Circuits and Signal Processing)

Sample text

Are in fact a DC approximation of the power amplifier nonlinearity. In reality, the distortion curves are not fixed but can change slowly due to temperature changes or other environmental effects. This is denoted as memory-effects. Different means exist to quantify the linearity of a power amplifier. The third order intercept point (IP3) is a well known characteristic of low noise amplifiers and mixers [Crip99]. It is based on a two-tone signal test and gives the (virtual) output power for which the third order intermodulation term becomes as large as the actual output power.

For very small conduction angles, the current will consist of a short but very high peak and for α = 0 , the current will be a Dirac pulse. 20(b) depicts the Fourier analysis of the drain current. A conduction angle of 2π resembles a Class A amplifier. It can indeed be seen that for Class A, Imax = 2 V, IDC = 1 A, I1 = 1 A and no harmonics are generated. 21 shows the output power, DC power consumption and efficiency versus conduction angle. Again, Imax is adjusted for a maximum voltage swing at the output and therefore the output power will be constant.

The nMOST. The resulting high input capacitance makes the Class D amplifier less attractive for RF applications. 7 Class E Like Class D, the Class E power amplifier is also capable of achieving a 100% efficiency. 34 [Soka75]. Due to the tuned series tank (L0 and C0 ) the output voltage will be sinusoidal, and no harmonic power will be dissipated. The nMOS transistor acts as a switch. The Class E amplifier is entirely designed in the time domain. If the switch is closed, the DC current from inductor LDC will flow through the switch.

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Precision Temperature Sensors in CMOS Technology (Analog Circuits and Signal Processing) by Micheal A.P. Pertijs, Johan Huijsing


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