Analysing and measuring the performance of memristive integrating amplifiers

Recording reliably extracellular neural activities is an essential prerequisite for the development of bioelectronics and neuroprosthetic applications. Recently, a fully differential, two-stage, integrating pre-amplifier was proposed amplifying then digitising signals. The amplifier featured finely tuneable offset that used as variable threshold detector. Given integrating, DC operating point keeps changing during integration, rendering traditional analysis (AC/DC) unsuitable. In this work, we analyse operation circuit propose alternative definitions validating necessary key performance metrics, including gain, bandwidth, tuning range sensitivity with respect to memory states employed memristors. amplification process analysed largely through investigating transient behaviour integration phase. This benchmarking approach finally leveraged providing useful insights design trade-offs memristor-based amplifier.