Amplitude modulator circuit featuring TiO2 memristor with linear dopant drift

Abstract

An amplitude modulation circuit architecture featuring a recently published titanium dioxide (TiO 2 ) memristor is proposed. The circuit performance is analysed and simulated with the published physical memristor model under the condition of linear dopant drift. The simulated results demonstrate that the performance is well predicted by the mathematical analysis and supports the viability of the design.Introduction: The announcement of a TiO 2 memristor development by Hewlett Packard [1] has led to significant interest in modelling [2, 3] and application of these devices [1,4,5]. Although many of the proposed applications focus on switching and nonvolatile memory applications, analogue applications as shown in [4] will be of increased interest as memristor technology becomes readily available. In this Letter, an amplitude modulation (AM) circuit utilising a TiO 2 memristor with linear dopant drift is investigated. Both mathematical analysis and simulation results are presented, which demonstrate the feasibility of the memristor in this application.

On the performance of a hybrid memristor/MOS π-attenuator circuit

“…But the importance of the result is that the internal state variable w depends on the integral of the applied bias and becomes increasingly less sensitive at high frequency AC excitation. Due to this integration property numerous examples of memristance programming for analog circuit application have been proposed [9][10][11][12][13][14][15]23].…”

“…But in other works, the memristor is considered for analog applications based on its continuum of programmable memristance and unique frequency characteristics [9][10][11][12][13][14][15].…”

On Development and Expectation of Memristor

“…People who have enough knowledge of basis of memristor can do further study on its applications and more complicated circuit, such as counting circuit, modulator and demodulator based on TiO 2 memristor [6], multi-carrier UWB receiver [7], programmable logic unit etc.…”

Memristor-based series voltage regulators

“…Some review papers on memristive systems can be found in [5][6][7]. The new nonlinear circuit component is currently under research for analog applications such as programmable amplifiers, filters and oscillators [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. It is expected that when the new component is improved enough, it will be available on the market and memristor-based applications will follow after [26,27].…”