Configurable Operational Amplifier Architectures Based on Oxide Resistive RAMs

Abstract

This paper introduces memristor-based operational amplifiers (OpAmps) in which semiconductor resistors are suppressed and replaced by memristors. The ability of the memristive elements to hold several resistance states is exploited to design programmable closed-loop OpAmps. An inverting OpAmp, an integrator and a differentiator are studied. Such designs are developed based on a calibrated memristor model, and offer dynamic configurability to realize different gains and corner frequencies at reduced chip area.

Design of a Novel Hybrid CMOS Non-Volatile SRAM Memory in 130nm RRAM Technology

“…To overcome these issues, RRAM is considered as a promising solution that can elevate SRAMs to the next level in memory technologies [12]. Due to its relatively small access latency, high density and analog feature [13,14], ReRAM is considered as a promising candidate for designing neuromorphic applications [15] and non-volatile logic gate [16] and novel SRAM architectures [17,18] beyond storage applications. Hybrid Non-Volatile SRAM (NVSRAM) based on emerging memories are expected to replace traditional SRAM in SoC applications [19].…”