NFC Powered Cyclic Voltammetry with Dynamic Output Voltage Range Exploitation

Providing enough voltage range for the needed compliance voltage of a chemical cell is a critical factor in standard CMOS processes. This paper explores an implementation of cyclic voltammetry which aims to exploit the limited voltage range efficiently by dynamic potential repositioning. The concept is demonstrated by an integrated circuit (IC) powered via near field communication (NFC). The source of the supply field is a smartphone which also collects and visualizes measured data. Gained results prove that dynamic positioning of electrode potentials does not impede the measurement result. Thus it enables the transfer of electrochemical measurements to low-cost, wirelessly powered, monolithic CMOS systems.