Digital-to-analog and analog-to-digital conversion with metal oxide memristors for ultra-low power computing

摘要

The paper presents experimental demonstration of 6-bit digital-to-analog (DAC) and 4-bit analog-to-digital conversion (ADC) operations implemented with a hybrid circuit consisting of Pt/TiO2−x/Pt resistive switching devices (also known as ReRAMs or memristors) and a Si operational amplifier (op-amp). In particular, a binary-weighted implementation is demonstrated for DAC, while ADC is implemented with a Hopfield neural network circuit.