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    MITE Architectures for Reconfigurable Analog Arrays

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    abramson_david_n_200412_mast.pdf (1.589Mb)
    Date
    2004-12-02
    Author
    Abramson, David
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    Abstract
    With the introduction of the floating-gate transistor into reconfigurable architectures, great advances have been made in the field. Recently, Hall et. al. have proposed the first truly large-scale field programmable analog array (FPAA). As an outgrowth of this work, a new class of FPAAs based on translinear elements has begun to be developed. The use of translinear elements, multiple input translinear elements (MITEs) specifically, allows for extreme versatility in the functions implemented by the system while keeping the computational elements of the FPAA regular. In addition, synthesis procedures have been developed for translinear elements. This facilitates the implementation of large-scale systems on the FPAA because the circuit design can be extracted using the synthesis procedures based on equations entered by the user. Two architectures are proposed for the new FPAA. The first architecture uses fine grain reconfigurability, every gate capacitor and the drain of each MITE can be connected arbitrarily, in order to create reconfigurable MITE networks. Circuits including a squaring circuit, a square root circuit, a translinear loop, a vector magnitude circuit, and a 1st-order log-domain filter were implemented using this architecture and results are presented. In addition, examples are shown to illustrate the compilation of the circuits onto the FPAA. The second proposed architecture uses a mix of fine and medium granularity in order to simplify the implementation of larger systems. Examples are given and again the compilation of the circuits onto the FPAA is shown.
    URI
    http://hdl.handle.net/1853/4920
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    • Georgia Tech Theses and Dissertations [23877]
    • School of Electrical and Computer Engineering Theses and Dissertations [3381]

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