Abstract
In modern biomedical applications, power consumption of electronic circuits is of utmost importance. Generally, these applications involve measuring low frequency signals for long periods of time. A Level Crossing ADC (LC-ADC) is perfect for this application because the input is converted from analog to digital only if there is a significant change, which allows the circuit to consume very little power when there is no change in the input signal. This project focused on the design of the comparator for a traditional Level Crossing ADC in 90nm CMOS technology. The comparator was designed to minimize power consumption while not sacrificing the speed in which a decision is made. Simulations were performed to determine the performance of this comparator under different process, supply voltage, and temperature (PVT) variations.