Analog in-memory computing device for neural network and operation method of readout circuit thereof

Abstract

The present invention provides an analog in-memory computing device for a neural network and an operation method of a readout circuit thereof. The analog in-memory computing device includes a memristor array and a readout circuit. The readout circuit includes a differential amplifier circuit and a plurality of current-voltage conversion circuits. A first input terminal of the differential amplifier circuit is coupled to a reference voltage source. Each second input terminal of the differential amplifier circuit is coupled to a corresponding column line of the memristor array. A first terminal of each current-voltage conversion circuit is coupled to a corresponding column line. A second terminal of each current-voltage conversion circuit is coupled to a corresponding output terminal of the differential amplifier circuit. Each current-voltage conversion circuit outputs a readout result voltage corresponding to a corresponding column line.

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