Title :
High speed and high resolution current loser-take-all circuit of O(N) complexity
Author :
Fish, Alexander ; Milrud, Vadim ; Yadid-Pecht, Orly
Author_Institution :
The VLSI Syst. Center, Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
Abstract :
A CMOS high performance current mode loser-take-all (LTA) circuit is presented. Based on an input currents average computation method, the circuit employs inhibitory and excitatory feedbacks, achieving both high speed and high resolution. The proposed circuit is suitable for operation in a wide variety of applications, such as self organizing neural networks and fuzzy systems, and it also can be used to compute the global minimum of the input array. While having a very simple structure, the proposed LTA has an O(N) complexity and is easy to implement. A circuit having 8 cells was designed and simulated in a standard 0.35 μm CMOS process available through MOSIS, is operated via a 1.8 V supply and dissipates 58 μW of power per cell. Its operation is discussed and simulation results are reported.
Keywords :
CMOS integrated circuits; circuit complexity; circuit feedback; current-mode circuits; integrated circuit design; 0.35 micron; 1.8 V; 58 muW; complexity; current mode circuit; excitatory feedback; fuzzy systems; high performance CMOS circuit; inhibitory feedback; input array; input currents average computation method; loser-take-all circuit; self organizing neural networks; Circuit simulation; Computer architecture; Energy consumption; Feedback circuits; Fuzzy systems; Hysteresis; Marine animals; Neural networks; Organizing; Voltage;
Conference_Titel :
Electronics, Circuits and Systems, 2004. ICECS 2004. Proceedings of the 2004 11th IEEE International Conference on
Print_ISBN :
0-7803-8715-5
DOI :
10.1109/ICECS.2004.1399658
