Digital-analog hybrid charge domain neuron circuit based on CMOS process

Abstract

The invention discloses a digital-analog hybrid charge domain neuron circuit based on the CMOS process. The neuron circuit is characterized by comprising a 4bit DAC, a neuron synapse circuit, an 8bitADC, an activation function circuit and a sequential circuit, wherein the 4bit DAC, the neuron synapse circuit, the 8bit ADC and the activation function circuit are sequentially connected, and the sequential circuit is connected with the 4bit DAC, the neuron synapse circuit, the 8bit ADC and the activation function circuit. The neuron circuit has advantages of mature process, low cost, low power consumption and high universality.

Description

technical field [0001] The invention relates to the technical field of artificial neural networks, in particular to a CMOS technology-based, digital-analog mixed, charge-domain neuron circuit. Background technique [0002] There are about 10 billion neurons and about 60 trillion synapses, or connections, in the human cerebral cortex. The brain has a very efficient structure, specifically, the energy efficiency of the brain is about 10 per operation per second -16 joules, and the corresponding value of the best computers in use today is far greater than that of the human brain. [0003] Artificial neural network is to abstract the human brain neuron network from the perspective of information processing, establish a simple model, and form different networks according to different connection methods. In the past ten years, the research work of artificial neural network has been deepened, and great progress has been made. It has successfully solved many practical problems tha...

AI Technical Summary

Problems solved by technology

However, this structure has a disadvantage that there is a quiescent working current and a large power consumption.

Moreover, it is difficult to design large-scale analog circuits as a whole. There are no better automated design tools for analog circuits, and the design largely depends on the experience of the designer.

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