Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for implementing brain emulation neural networks using analog circuits. One of the methods includes obtaining data defining a synaptic connectivity graph representing synaptic connectivity between neurons in a brain of a biological organism, wherein the synaptic connectivity graph comprises a plurality of nodes and edges, wherein each edge connects a pair of nodes, each node corresponds to a respective neuron in the brain of the biological organism, and each edge connecting a pair of nodes in the synaptic connectivity graph corresponds to a synaptic connection between a pair of neurons; determining an artificial neural network architecture corresponding to the synaptic connectivity graph; and generating, from the artificial neural network architecture, a design of an analog circuit that is configured to execute a plurality of operations of an artificial neural network having the artificial neural network architecture.
ANALOG CIRCUITS FOR IMPLEMENTING BRAIN EMULATION NEURAL NETWORKS