Introduction
Miniaturization of implantable biosensors for continuous, in-vivo monitoring of clinically relevant analytes is an important step toward viability of such devices. While wireless power delivery via on-chip antennas promises miniaturization and realization of minimally invasive devices, it can only support low levels of power consumption. This is due to the significant tissue absorption at high frequencies, small size of the chip and quality factor of on-chip inductors [1]. Therefore, reducing the power consumption of the sensor while maintaining high sensitivity and dynamic range is crucial.