The present invention relates to a spike neural network circuit including a comparator driven by conditional bias currents. According to an embodiment of the present invention, the spike neural network circuit comprises: a synapse configured to generate an operation signal based on an input spike signal and a weight; and a neuron configured to generate an output spike signal by using a comparator configured to compare the voltage of a threshold signal and the voltage of a membrane signal generated based on the operation signal, wherein the comparator includes a bias circuit configured to conditionally supply the bias currents of the comparator according to the membrane signal.
SPIKE NEURAL NETWORK CIRCUIT INCLUDING COMPARATOR OPERATED BY CONDITIONAL BIAS CURRENT