A novel architecture for loser-take-all functions is proposed. Inputs and outputs of the circuit are currents, which make the circuit appropriated for low-voltage neural hardware computation. In contrast to most existing realisations the circuit does not require subtraction from a fixed reference what decreases accuracy and input dynamic. Moreover, in addition to the loser, it also outputs the minimum input current. The circuit was synthesized using a SOI (silicon on insulator) technology and optimised to work with 1.5V voltage supply showing improved speed and accuracy for a very low power consumption (Typically 5 μW per cell when the input current is 1μA).
Universidad Católica de CórdobaLaboratorio de Microelectrόnica
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Donckers, N., Dualibe, C., & Verleysen, M. (2000). A current-mode CMOS loser-take-all with minimum function for neural computations. Proceedings of the IEEE International Symposium on Circuits and Systems (ISCAS′2000), p. 415-418. https://hdl.handle.net/2078.5/254086