Synthesis : A Proposed Approach to Design VFs
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An automatic methodology focused on the synthesis of voltage followers (VFs) at the transistor level is introduced. The synthesis procedure is executed in four basic steps: selection of a generic cell composed of nullators; the manner in which a norator is added to form joined nullator-norator pairs; addition of the biasing circuitry and finally; synthesis of each joined pair by a BJT or a MOSFET. The best transistor-circuit design is selected among all the generated combinations according to their frequency response calculated using SPICE. Key-Words: Analog Design Automation, Circuit Synthesis, Transistor Circuits, Biasing Techniques, Nullor.
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