Titlebook: Low-Voltage CMOS Log Companding Analog Design; Francisco Serra-Graells,Adoración Rueda,José L. Hu Book 2003 Springer Science+Business Medi

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Mosfet Modeling for Companding,ion is paid to the analytical large signal . model as the main tool for circuit design when implementing the Companding Theory. A specific extraction procedure is also introduced to obtain the required technological parameters either from numerical models or from experimental data.

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Pulse Duration Modulation,es all the new basic building blocks used to synthesizing fully integrable pulse duration modulators (PDM). An experimental example is also supplied at the end to verify the validity of the proposed circuit technique.

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Dynamic Range,esign equations at the device level are derived from distortion and noise considerations. Also, different dynamic range versus signalto-noise ratio strategies are discussed in the Log companding frame of this study.

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PTAT Generation,This chapter introduces new circuit techniques devoted to the generation of static . PTAT references. The topologies obtained can be understood as a particularization of the general design techniques proposed for amplification in Chapter 3. An integrated example is also presented as a demonstrator of the novel Log companding strategy.

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Introduction,s are explained first. Then, limitations of the state-of-the-art CMOS analog techniques are studied. As a result, the Instantaneous Companding Theory is chosen here as the most efficient and complete signal processing alternative for very low-voltage operation. A short overview of this theory is pre