Memristor loaded cross-coupled differential voltage sense amplifier design with improved performance

Area of Science:

• Electrical Engineering
• Materials Science

Background:

• Sense amplifiers are crucial for low-voltage memory design, enhancing signal propagation from memory cells to peripheral circuits.
• Increasing memory array sizes lead to higher bit-line capacitance and cell-access resistance, resulting in smaller signals and longer latency.
• Conventional CMOS-based sense amplifiers face challenges in detecting these small signals efficiently.

Purpose of the Study:

• To propose a memristor-loaded cross-coupled differential voltage sense amplifier as an alternative to CMOS-based designs.
• To improve the gain, speed, and reduce the area size of sense amplifiers for advanced memory systems.

Main Methods:

• A novel memristor-loaded cross-coupled differential voltage sense amplifier was designed and implemented.
• The performance of the proposed memristor-based amplifier was compared against conventional CMOS-based sense amplifiers.

Main Results:

• The memristor-loaded sense amplifier demonstrated potential for reduced area size, increased gain, and enhanced speed of operation.
• Memristor integration allows for increased load resistance, leading to improved gain and faster sensing of low voltage swings.
• Memristors offer reduced leakage current and smaller physical footprint compared to traditional components.

Conclusions:

• The memristor-loaded sense amplifier presents a promising solution for overcoming the limitations of conventional sense amplifiers in large-scale, low-voltage memory designs.
• The use of memristors provides a tunable and efficient method for enhancing sense amplifier performance, addressing challenges posed by small signal detection and latency.