Practical approach to programmable analog circuits with memristors

TL;DR

This paper presents a practical method for integrating memristors into programmable analog circuits, using different voltage levels for operation and programming to maintain stability and enable configurable circuit parameters.

Contribution

It introduces a novel circuit design approach that separates programming and operation voltages, enabling stable and programmable analog circuits with memristors.

Findings

Successfully built circuits demonstrating memristor-based threshold control

Achieved programmable gain and frequency settings in prototype circuits

Validated the approach with experimental results showing stable analog operation

Abstract

We suggest an approach to use memristors (resistors with memory) in programmable analog circuits. Our idea consists in a circuit design in which low voltages are applied to memristors during their operation as analog circuit elements and high voltages are used to program the memristor's states. This way, as it was demonstrated in recent experiments, the state of memristors does not essentially change during analog mode operation. As an example of our approach, we have built several programmable analog circuits demonstrating memristor-based programming of threshold, gain and frequency.