A Voltage-Controlled, Oscillation-Based ADC Design for Computation-in-Memory Architectures Using Emerging ReRAMs

Conventional von Neumann architectures cannot successfully meet the demands of emerging computation and data-intensive applications. These shortcomings can be improved by embracing new architectural paradigms using technologies. In particular, Computation-In-Memory (CiM) technologies such as Resistive Random Access Memory (ReRAM) is a promising approach to computational applications neural networks database queries. CiM, done in an analog manner; digitization results costly several aspects, area, energy, performance, which hinders potential CiM. this article, we propose efficient Voltage-Controlled-Oscillator (VCO)–based analog-to-digital converter (ADC) design improve performance energy efficiency CiM architecture. Due its efficiency, proposed ADC assigned per-column manner instead sharing one among multiple columns. This will boost parallel execution overall crossbar array. The evaluated Multiplication Accumulation (MAC) operation implemented ReRAM-based arrays. Simulations show that our distinguish up 32 levels within 10 ns while consuming less than 5.2 pJ energy. addition, tolerate ≈30% variability with negligible impact on ADC.