A large-scale FPAA enabling adaptive floating-gate circuits

We present a large-scale Field Programmable Analog Array (FPAA) that enables floating-gate adaptive circuits using Floating-Gate(FG) based switch technology. We present a novel architecture technology that enables switch routing with FG elements for signals resulting from high voltage adapting FG elements. We present careful analysis and characterization of the FG structure, including programming ranges, electron tunneling paths, to show the indirect programming structure involving an nFET device can handle the resulting signals. We present experimental data for the basic adaptive structure and for a compiled AFGA.