Title :
Continuous-time feedback in floating-gate MOS circuits
Author :
Hasler, PauI ; Diorio, Chris ; Minch, Bradley A.
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
We present the negative- and positive-feedback circuit configurations of continuous-time floating-gate MOS circuits. We start by reviewing the dynamics of our pFET and nFET single-transistor synapses. We present the range of possible stabilizing and destabilizing types of feedback in circuits with one floating-gate synapse, including data from nFET and pFET synapses. We then show examples of competitive and cooperative behavior in multiple-synapse circuits. We present experimental data from circuits fabricated in the 2 μm n-well Orbit CMOS process available through MOSIS
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; circuit feedback; circuit stability; continuous time systems; neural chips; 2 micron; MOSIS; competitive behavior; continuous-time feedback; cooperative behavior; destabilizing types; floating-gate MOS circuits; floating-gate synapse; multiple-synapse circuits; n-well Orbit CMOS process; nFET single-transistor synapses; negative-feedback circuit configurations; pFET single-transistor synapses; positive-feedback circuit configurations; stabilizing types; CMOS process; Capacitance; Coupling circuits; DVD; Feedback circuits; Negative feedback; Nonvolatile memory; Semiconductor device modeling; Tunneling; Voltage;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.703909
