Document Type
Article
Publication Date
12-2023
Keywords
neural networks; neural network hardware; neuromorphic; analog computing; low-power electronics; edge computing; spiking neural networks; analog circuit design
Abstract
A Spiking Neural Network (SNN) is realized within a 65 nm CMOS process to demonstrate the feasibility of its constituent cells. Analog hardware neural networks have shown improved energy efficiency in edge computing for real-time-inference applications, such as speech recognition. The proposed network uses a leaky integrate and fire neuron scheme for computation, interleaved with a Spike Timing Dependent Plasticity (STDP) circuit for implementing synaptic-like weights. The low-power, asynchronous analog neurons and synapses are tailored for the VLSI environment needed to effectively make use of hardware SSN systems. To demonstrate functionality, a feedforward Spiking Neural Network composed of two layers, the first with ten neurons and the second with six, is implemented. The neuron design operates with 2.1 pJ of power per spike and 20 pJ per synaptic operation.
Citation
Venker, J.S.; Vincent, L.; Dix, J. A Low-Power Analog Cell for Implementing Spiking Neural Networks in 65 nm CMOS. J. Low Power Electron. Appl. 2023, 13, 55. https://doi.org/10.3390/jlpea13040055
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.