Abstract:
A digital-analog hybrid neural network exploits efficient analog computation and digital intra-network communication for feature extraction and classification. Taking adv...Show MoreMetadata
Abstract:
A digital-analog hybrid neural network exploits efficient analog computation and digital intra-network communication for feature extraction and classification. Taking advantage of the inherently low SNR requirements of the Locally Competitive Algorithm (LCA), the internally-analog neuron is 3x smaller and 7.5x more energy efficient than an equivalent digital design. This work demonstrates large-scale integration of 512 analog neurons using a traditional scalable digital workflow to achieve a best-of-class power efficiency of 3.43TOPS/W for object classification. At 48.9pJ/pixel and 50.1nJ/classification, the prototype 512-neuron IC achieves 2x efficiency over the digital design while maintaining reliable classification results over PVT.
Published in: 2017 Symposium on VLSI Circuits
Date of Conference: 05-08 June 2017
Date Added to IEEE Xplore: 14 August 2017
ISBN Information: